diff --git a/.cmake.conf b/.cmake.conf
index ff0e00763..4ef1f6199 100644
--- a/.cmake.conf
+++ b/.cmake.conf
@@ -3,5 +3,7 @@ set(QT_REPO_MODULE_PRERELEASE_VERSION_SEGMENT "alpha1")
 
 set(QT_REPO_PUBLIC_NAMESPACE_REGEX "^::Qt3D.*")
 
+set(QT_EXTRA_INTERNAL_TARGET_DEFINES "QT_NO_AS_CONST=1")
+
 # Use cpp-based syncqt
 set(QT_USE_SYNCQT_CPP TRUE)