diff --git a/src/kbreadcrumbselectionmodel.h b/src/kbreadcrumbselectionmodel.h
index df20cfd..8e8fd60 100644
--- a/src/kbreadcrumbselectionmodel.h
+++ b/src/kbreadcrumbselectionmodel.h
@@ -22,7 +22,7 @@
 #ifndef KBREADCRUMBSPROXYMODEL_H
 #define KBREADCRUMBSPROXYMODEL_H
 
-#include <QItemSelectionModel>
+#include <QtCore/QItemSelectionModel>
 #include <QtCore/QAbstractItemModel>
 
 #include "kitemmodels_export.h"
diff --git a/src/kcheckableproxymodel.h b/src/kcheckableproxymodel.h
index 1d8757d..d193646 100644
--- a/src/kcheckableproxymodel.h
+++ b/src/kcheckableproxymodel.h
@@ -21,8 +21,8 @@
 
 #include "kitemmodels_export.h"
 
-#include <QItemSelection>
-#include <QIdentityProxyModel>
+#include <QtCore/QItemSelection>
+#include <QtCore/QIdentityProxyModel>
 
 class KCheckableProxyModelPrivate;
 
diff --git a/src/kdescendantsproxymodel.h b/src/kdescendantsproxymodel.h
index 429a71e..35e67de 100644
--- a/src/kdescendantsproxymodel.h
+++ b/src/kdescendantsproxymodel.h
@@ -20,7 +20,7 @@
 #ifndef KDESCENDANTSPROXYMODEL_P_H
 #define KDESCENDANTSPROXYMODEL_P_H
 
-#include <QAbstractProxyModel>
+#include <QtCore/QAbstractProxyModel>
 
 class KDescendantsProxyModelPrivate;
 
diff --git a/src/klinkitemselectionmodel.h b/src/klinkitemselectionmodel.h
index b9a7171..c871121 100644
--- a/src/klinkitemselectionmodel.h
+++ b/src/klinkitemselectionmodel.h
@@ -22,8 +22,8 @@
 #ifndef KLINKITEMSELECTIONMODEL_H
 #define KLINKITEMSELECTIONMODEL_H
 
-#include <QItemSelectionModel>
-#include <QAbstractProxyModel>
+#include <QtCore/QItemSelectionModel>
+#include <QtCore/QAbstractProxyModel>
 
 #include "kitemmodels_export.h"
 
diff --git a/src/kmodelindexproxymapper.h b/src/kmodelindexproxymapper.h
index 59a2f3a..9c4a63d 100644
--- a/src/kmodelindexproxymapper.h
+++ b/src/kmodelindexproxymapper.h
@@ -22,7 +22,7 @@
 #ifndef KMODELINDEXPROXYMAPPER_H
 #define KMODELINDEXPROXYMAPPER_H
 
-#include <QObject>
+#include <QtCore/QObject>
 
 #include "kitemmodels_export.h"
 
diff --git a/src/krecursivefilterproxymodel.h b/src/krecursivefilterproxymodel.h
index d30c23e..4662fe1 100644
--- a/src/krecursivefilterproxymodel.h
+++ b/src/krecursivefilterproxymodel.h
@@ -20,7 +20,7 @@
 #ifndef KRECURSIVEFILTERPROXYMODEL_H
 #define KRECURSIVEFILTERPROXYMODEL_H
 
-#include <QSortFilterProxyModel>
+#include <QtCore/QSortFilterProxyModel>
 
 #include "kitemmodels_export.h"
 
diff --git a/src/kselectionproxymodel.h b/src/kselectionproxymodel.h
index dbedaab..fed23f1 100644
--- a/src/kselectionproxymodel.h
+++ b/src/kselectionproxymodel.h
@@ -20,8 +20,8 @@
 #ifndef KSELECTIONPROXYMODEL_H
 #define KSELECTIONPROXYMODEL_H
 
-#include <QAbstractProxyModel>
-#include <QItemSelectionModel>
+#include <QtCore/QAbstractProxyModel>
+#include <QtCore/QItemSelectionModel>
 
 #include "kitemmodels_export.h"