diff --git a/src/corelib/Qt5CoreConfigExtras.cmake.in b/src/corelib/Qt5CoreConfigExtras.cmake.in
index aa31fbc2265..4889e8ded27 100644
--- a/src/corelib/Qt5CoreConfigExtras.cmake.in
+++ b/src/corelib/Qt5CoreConfigExtras.cmake.in
@@ -26,6 +26,10 @@ list(APPEND Qt5Core_DEFINITIONS -DQT_NAMESPACE=$$QT_NAMESPACE)
 list(APPEND Qt5Core_COMPILE_DEFINITIONS QT_NAMESPACE=$$QT_NAMESPACE)
 !!ENDIF
 
+!!IF contains(QT_CONFIG, reduce_exports)
+set(QT_VISIBILITY_AVAILABLE \"True\")
+!!ENDIF
+
 !!IF !isEmpty(QT_LIBINFIX)
 set(QT_LIBINFIX \"$${QT_LIBINFIX}\")
 !!ENDIF