diff --git a/src/autotests/CMakeLists.txt b/src/autotests/CMakeLists.txt
index 7cca0339..a04029ce 100644
--- a/src/autotests/CMakeLists.txt
+++ b/src/autotests/CMakeLists.txt
@@ -9,6 +9,12 @@ ecm_mark_as_test(CharacterColorTest)
 add_test(CharacterColorTest CharacterColorTest)
 target_link_libraries(CharacterColorTest ${KONSOLE_TEST_LIBS})
 
+add_executable(CharacterWidthTest CharacterWidthTest.cpp)
+ecm_mark_as_test(CharacterWidthTest)
+add_test(CharacterWidthTest CharacterWidthTest)
+target_link_libraries(CharacterWidthTest ${KONSOLE_TEST_LIBS})
+
+
 if (NOT ${CMAKE_SYSTEM_NAME} MATCHES "Darwin")
     add_executable(DBusTest DBusTest.cpp)
     ecm_mark_as_test(DBusTest)
diff --git a/src/konsole_wcwidth.cpp b/src/konsole_wcwidth.cpp
index ba5e06a8..356a3504 100644
--- a/src/konsole_wcwidth.cpp
+++ b/src/konsole_wcwidth.cpp
@@ -68,6 +68,7 @@
 
 // Own
 #include "konsole_wcwidth.h"
+#include "konsole_export.h"
 
 struct interval {
     unsigned long first;
@@ -125,7 +126,7 @@ static int bisearch(unsigned long ucs, const struct interval* table, int max)
  * in ISO 10646.
  */
 
-int konsole_wcwidth(quint16 oucs)
+int KONSOLEPRIVATE_EXPORT konsole_wcwidth(quint16 oucs)
 {
     /* NOTE: It is not possible to compare quint16 with the new last four lines of characters,
      * therefore this cast is now necessary.