diff --git a/src/corelib/tools/qpoint.h b/src/corelib/tools/qpoint.h
index e2d7f4372a5..7b1004897ac 100644
--- a/src/corelib/tools/qpoint.h
+++ b/src/corelib/tools/qpoint.h
@@ -42,7 +42,7 @@
 
 #include <QtCore/qnamespace.h>
 
-#if defined(Q_OS_DARWIN)
+#if defined(Q_OS_DARWIN) || defined(Q_QDOC)
 struct CGPoint;
 #endif
 
diff --git a/src/corelib/tools/qrect.h b/src/corelib/tools/qrect.h
index 8ce668f8ec6..f973cf3494c 100644
--- a/src/corelib/tools/qrect.h
+++ b/src/corelib/tools/qrect.h
@@ -48,7 +48,7 @@
 #error qrect.h must be included before any header file that defines topLeft
 #endif
 
-#if defined(Q_OS_DARWIN)
+#if defined(Q_OS_DARWIN) || defined(Q_QDOC)
 struct CGRect;
 #endif
 
diff --git a/src/corelib/tools/qsize.h b/src/corelib/tools/qsize.h
index 74698224f29..cd5f8adbf5a 100644
--- a/src/corelib/tools/qsize.h
+++ b/src/corelib/tools/qsize.h
@@ -42,7 +42,7 @@
 
 #include <QtCore/qnamespace.h>
 
-#if defined(Q_OS_DARWIN)
+#if defined(Q_OS_DARWIN) || defined(Q_QDOC)
 struct CGSize;
 #endif