diff --git a/webenginepart/src/CMakeLists.txt b/webenginepart/src/CMakeLists.txt
--- a/webenginepart/src/CMakeLists.txt
+++ b/webenginepart/src/CMakeLists.txt
@@ -27,7 +27,7 @@
     ui/featurepermissionbar.cpp
 )
 
-if(Qt5WebEngineWidgets_VERSION VERSION_GREATER_EQUAL "5.12.0")
+if(NOT Qt5WebEngineWidgets_VERSION VERSION_LESS "5.12.0")
   add_definitions(-DUSE_QWEBENGINE_URL_SCHEME)
   add_definitions(-DDOWNLOADITEM_KNOWS_PAGE)
 else()