diff --git a/vlib/v/util/util.v b/vlib/v/util/util.v
index 915bc2adb0..e0a17a408e 100644
--- a/vlib/v/util/util.v
+++ b/vlib/v/util/util.v
@@ -36,7 +36,7 @@ const (
 	]
 )
 
-const builtin_module_names = ['builtin', 'strconv', 'strings', 'dlmalloc']
+const builtin_module_names = ['builtin', 'strconv', 'strings', 'dlmalloc', 'math']
 
 pub fn module_is_builtin(mod string) bool {
 	// NOTE: using util.builtin_module_parts here breaks -usecache on macos