diff --git a/cmake/modules/FindQt5PlatformSupport.cmake b/cmake/modules/FindQt5PlatformSupport.cmake
index e7625969ae..90a8438ac8 100644
--- a/cmake/modules/FindQt5PlatformSupport.cmake
+++ b/cmake/modules/FindQt5PlatformSupport.cmake
@@ -76,7 +76,7 @@ find_path(Qt5PlatformSupport_INCLUDE_DIR
     NAMES
         QtPlatformSupport/private/qfontconfigdatabase_p.h
     HINTS
-        ${PKG_Qt5PlatformSupport_INCLUDE_DIRS}/QtPlatformSupport/${PKG_Qt5PlatformSupport_VERSION}/
+        ${PKG_Qt5PlatformSupport_INCLUDEDIR}/QtPlatformSupport/${PKG_Qt5PlatformSupport_VERSION}/
 )
 find_library(Qt5PlatformSupport_LIBRARY
     NAMES