diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index 0646b82..f90e10b 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -267,7 +267,7 @@ PRIVATE
   KF5::ItemViews
   KF5::SyntaxHighlighting
   KF5::GuiAddons
-  Qt::Xml
+  Qt5::Xml
 )
 
 
diff --git a/src/collectionpage/autotests/CMakeLists.txt b/src/collectionpage/autotests/CMakeLists.txt
index 753799c..5b38956 100644
--- a/src/collectionpage/autotests/CMakeLists.txt
+++ b/src/collectionpage/autotests/CMakeLists.txt
@@ -2,7 +2,7 @@ macro(add_mailcommon_collectionpage_test _name)
     ecm_add_test(${ARGN}
         TEST_NAME ${_name}
         NAME_PREFIX "mailcommon-collectionpage-"
-        LINK_LIBRARIES Qt::Test Qt::Gui KF5::AkonadiCore KF5::MailCommon KF5::Completion
+        LINK_LIBRARIES Qt5::Test Qt5::Gui KF5::AkonadiCore KF5::MailCommon KF5::Completion
     )
 endmacro()
 
diff --git a/src/filter/autotests/CMakeLists.txt b/src/filter/autotests/CMakeLists.txt
index a6cb6d5..6e6a25e 100644
--- a/src/filter/autotests/CMakeLists.txt
+++ b/src/filter/autotests/CMakeLists.txt
@@ -1,4 +1,4 @@
-set(mailcommon_filter_test_LIBS Qt::Test Qt::Gui KF5::AkonadiCore KF5::AkonadiMime
+set(mailcommon_filter_test_LIBS Qt5::Test Qt5::Gui KF5::AkonadiCore KF5::AkonadiMime
                                 KF5::MailCommon KF5::PimCommon Phonon::phonon4qt5
                                 KF5::KIOWidgets KF5::IconThemes KF5::TemplateParser
                                 KF5::MailTransport KF5::I18n KF5::SyntaxHighlighting
diff --git a/src/filter/tests/CMakeLists.txt b/src/filter/tests/CMakeLists.txt
index 4515328..2388f8c 100644
--- a/src/filter/tests/CMakeLists.txt
+++ b/src/filter/tests/CMakeLists.txt
@@ -3,8 +3,8 @@ set(filterimporterexportergui_SRCS filterimporterexportergui.cpp)
 add_executable(filterimporterexportergui ${filterimporterexportergui_SRCS})
 ecm_mark_as_test(filterimporterexportergui)
 target_link_libraries(filterimporterexportergui
-  Qt::Core
-  Qt::Gui
+  Qt5::Core
+  Qt5::Gui
   KF5::MailCommon
   KF5::I18n
 )
@@ -13,8 +13,8 @@ set(invalidfilterdialoggui_SRCS invalidfilterdialoggui.cpp)
 add_executable(invalidfilterdialoggui ${invalidfilterdialoggui_SRCS})
 ecm_mark_as_test(invalidfilterdialoggui)
 target_link_libraries(invalidfilterdialoggui
-  Qt::Core
-  Qt::Gui
+  Qt5::Core
+  Qt5::Gui
   KF5::MailCommon
   KF5::I18n
 )
@@ -23,8 +23,8 @@ set(mndadvicedialoggui_SRCS mndadvicedialoggui.cpp)
 add_executable(mndadvicedialoggui ${mndadvicedialoggui_SRCS})
 ecm_mark_as_test(mndadvicedialoggui)
 target_link_libraries(mndadvicedialoggui
-  Qt::Core
-  Qt::Gui
+  Qt5::Core
+  Qt5::Gui
   KF5::MailCommon
   KF5::I18n
 )
@@ -34,8 +34,8 @@ set(kmfilterdialogtestgui_SRCS kmfilterdialogtestgui.cpp ../../../autotests/dumm
 add_executable(kmfilterdialogtestgui ${kmfilterdialogtestgui_SRCS})
 ecm_mark_as_test(kmfilterdialogtestgui)
 target_link_libraries(kmfilterdialogtestgui
-  Qt::Core
-  Qt::Gui
+  Qt5::Core
+  Qt5::Gui
   KF5::MailCommon
   KF5::I18n
 )
@@ -44,8 +44,8 @@ set(filteractionmissingsoundurldialogui_SRCS filteractionmissingsoundurldialogui
 add_executable(filteractionmissingsoundurldialogui ${filteractionmissingsoundurldialogui_SRCS})
 ecm_mark_as_test(filteractionmissingsoundurldialogui)
 target_link_libraries(filteractionmissingsoundurldialogui
-  Qt::Core
-  Qt::Gui
+  Qt5::Core
+  Qt5::Gui
   KF5::MailCommon
   KF5::I18n
   KF5::KIOWidgets
@@ -55,8 +55,8 @@ set(filteractionmissingtemplatedialoggui_SRCS filteractionmissingtemplatedialogg
 add_executable(filteractionmissingtemplatedialoggui ${filteractionmissingtemplatedialoggui_SRCS})
 ecm_mark_as_test(filteractionmissingtemplatedialoggui)
 target_link_libraries(filteractionmissingtemplatedialoggui
-  Qt::Core
-  Qt::Gui
+  Qt5::Core
+  Qt5::Gui
   KF5::MailCommon
   KF5::I18n
   KF5::Completion
@@ -66,8 +66,8 @@ set(filteractionmissingtransportdialoggui_SRCS filteractionmissingtransportdialo
 add_executable(filteractionmissingtransportdialoggui ${filteractionmissingtransportdialoggui_SRCS})
 ecm_mark_as_test(filteractionmissingtransportdialoggui)
 target_link_libraries(filteractionmissingtransportdialoggui
-  Qt::Core
-  Qt::Gui
+  Qt5::Core
+  Qt5::Gui
   KF5::MailCommon
   KF5::I18n
   KF5::Completion
@@ -78,8 +78,8 @@ set(filteractionmissingaccountdialoggui_SRCS filteractionmissingaccountdialoggui
 add_executable(filteractionmissingaccountdialoggui ${filteractionmissingaccountdialoggui_SRCS})
 ecm_mark_as_test(filteractionmissingaccountdialoggui)
 target_link_libraries(filteractionmissingaccountdialoggui
-  Qt::Core
-  Qt::Gui
+  Qt5::Core
+  Qt5::Gui
   KF5::MailCommon
   KF5::I18n
   KF5::Completion
@@ -89,8 +89,8 @@ set(filteractionmissingtagdialoggui_SRCS filteractionmissingtagdialoggui.cpp ../
 add_executable(filteractionmissingtagdialoggui ${filteractionmissingtagdialoggui_SRCS})
 ecm_mark_as_test(filteractionmissingtagdialoggui)
 target_link_libraries(filteractionmissingtagdialoggui
-  Qt::Core
-  Qt::Gui
+  Qt5::Core
+  Qt5::Gui
   KF5::MailCommon
   KF5::I18n
   KF5::Completion
@@ -100,8 +100,8 @@ set(filteractionmissingidentitydialoggui_SRCS filteractionmissingidentitydialogg
 add_executable(filteractionmissingidentitydialoggui ${filteractionmissingidentitydialoggui_SRCS})
 ecm_mark_as_test(filteractionmissingidentitydialoggui)
 target_link_libraries(filteractionmissingidentitydialoggui
-  Qt::Core
-  Qt::Gui
+  Qt5::Core
+  Qt5::Gui
   KF5::MailCommon
   KF5::I18n
   KF5::Completion
diff --git a/src/mdn/autotests/CMakeLists.txt b/src/mdn/autotests/CMakeLists.txt
index 2dcee4a..2ce09da 100644
--- a/src/mdn/autotests/CMakeLists.txt
+++ b/src/mdn/autotests/CMakeLists.txt
@@ -1,5 +1,5 @@
 ecm_add_test(mdnstateattributetest.cpp
     TEST_NAME mdnattributetest
     NAME_PREFIX "mailcommon-mdn-"
-    LINK_LIBRARIES Qt::Test Qt::Gui KF5::AkonadiCore KF5::MailCommon
+    LINK_LIBRARIES Qt5::Test Qt5::Gui KF5::AkonadiCore KF5::MailCommon
 )
diff --git a/src/search/autotests/CMakeLists.txt b/src/search/autotests/CMakeLists.txt
index ca6aeea..ea97039 100644
--- a/src/search/autotests/CMakeLists.txt
+++ b/src/search/autotests/CMakeLists.txt
@@ -2,7 +2,7 @@ macro(add_search_autotest _name)
     ecm_add_test(${ARGN}
         TEST_NAME ${_name}
         NAME_PREFIX "mailcommon-search-"
-        LINK_LIBRARIES Qt::Test Qt::Gui KF5::Mime KF5::AkonadiCore KF5::AkonadiMime KF5::MailCommon KF5::I18n
+        LINK_LIBRARIES Qt5::Test Qt5::Gui KF5::Mime KF5::AkonadiCore KF5::AkonadiMime KF5::MailCommon KF5::I18n
     )
 endmacro()
 
diff --git a/src/snippets/autotests/CMakeLists.txt b/src/snippets/autotests/CMakeLists.txt
index b6a9843..155f9bd 100644
--- a/src/snippets/autotests/CMakeLists.txt
+++ b/src/snippets/autotests/CMakeLists.txt
@@ -1,34 +1,34 @@
 ecm_add_test(snippetsmanagertest.cpp
     NAME_PREFIX "mailcommon-snippets-"
-    LINK_LIBRARIES Qt::Test Qt::Gui KF5::MailCommon KF5::XmlGui
+    LINK_LIBRARIES Qt5::Test Qt5::Gui KF5::MailCommon KF5::XmlGui
 )
 
 ecm_add_test(snippetwidgettest.cpp
     NAME_PREFIX "mailcommon-snippets-"
-    LINK_LIBRARIES Qt::Test Qt::Gui KF5::MailCommon KF5::XmlGui
+    LINK_LIBRARIES Qt5::Test Qt5::Gui KF5::MailCommon KF5::XmlGui
 )
 
 ecm_add_test(snippetattachmentwidgettest.cpp
     NAME_PREFIX "mailcommon-snippets-"
-    LINK_LIBRARIES Qt::Test Qt::Gui KF5::MailCommon
+    LINK_LIBRARIES Qt5::Test Qt5::Gui KF5::MailCommon
 )
 
 ecm_add_test(snippetselectattachmentwidgettest.cpp
     NAME_PREFIX "mailcommon-snippets-"
-    LINK_LIBRARIES Qt::Test Qt::Gui KF5::MailCommon
+    LINK_LIBRARIES Qt5::Test Qt5::Gui KF5::MailCommon
 )
 
 ecm_add_test(snippetselectattachmentdialogtest.cpp
     NAME_PREFIX "mailcommon-snippets-"
-    LINK_LIBRARIES Qt::Test Qt::Gui KF5::MailCommon
+    LINK_LIBRARIES Qt5::Test Qt5::Gui KF5::MailCommon
 )
 
 ecm_add_test(snippetcustomfileattachmentnamedialogtest.cpp
     NAME_PREFIX "mailcommon-snippets-"
-    LINK_LIBRARIES Qt::Test Qt::Gui KF5::MailCommon
+    LINK_LIBRARIES Qt5::Test Qt5::Gui KF5::MailCommon
 )
 
 ecm_add_test(snippetcustomfileattachmentnamewidgettest.cpp
     NAME_PREFIX "mailcommon-snippets-"
-    LINK_LIBRARIES Qt::Test Qt::Gui KF5::MailCommon
+    LINK_LIBRARIES Qt5::Test Qt5::Gui KF5::MailCommon
 )