diff --git a/src/codegen/c.zig b/src/codegen/c.zig
index 99f15a902659004788477a58fa12004ef956b828..4d86594ab31241b398089ab819e6ef3b8e5aff34 100644
--- a/src/codegen/c.zig
+++ b/src/codegen/c.zig
@@ -1625,7 +1625,7 @@ pub const DeclGen = struct {
             if (func_analysis.branch_hint == .cold)
                 try w.writeAll("zig_cold ");
 
-            if (kind == .definition and func_analysis.disable_intrinsics or dg.mod.no_builtin)
+            if (kind == .definition and (func_analysis.disable_intrinsics or dg.mod.no_builtin))
                 try w.writeAll("zig_no_builtin ");
         }