diff --git a/cmake.opts b/cmake.opts
index 2f7a6a7954309546528ee01325759eb530762f20..87911fe414723c4d33ae994b28603c38c7105bbd 100644
--- a/cmake.opts
+++ b/cmake.opts
@@ -62,5 +62,4 @@ CMAKE_FLAGS="$SPECIFIC_COMPILER $SPECIFIC_GENERATOR $OPM_FLAGS
 -DENABLE_HEADERCHECK=$DUMUX_ENABLE_HEADERCHECK
 $DUMUX_ENABLE_PYTHON_BINDINGS
 $DUMUX_MULTITHREADING_BACKEND
-$DUMUX_CMAKE_FLAGS
 "