diff --git a/CMakeLists.txt b/CMakeLists.txt
index f283c47..602bf39 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -154,8 +154,7 @@ endif ()
 
 # require Qt 6 for the Qt Quick GUI
 if (QUICK_GUI
-    AND MAJOR_QT_VERSION VERSION_LESS 6
-    OR MAJOR_QT_VERSION VERSION_GREATER_EQUAL 7)
+        AND (MAJOR_QT_VERSION VERSION_LESS 6 OR MAJOR_QT_VERSION VERSION_GREATER_EQUAL 7))
     message(FATAL_ERROR "The Qt Quick GUI is only compatible with Qt 6 (but Qt ${MAJOR_QT_VERSION} was found).")
 endif ()