diff --git a/BUILD.gn b/BUILD.gn
index f6c0699..39f72cb 100644
--- a/BUILD.gn
+++ b/BUILD.gn
@@ -33,9 +33,7 @@
       "NO_SANITIZE_FUNCTION=",
     ]
 
-    if (is_debug) {
-      cflags += [ "/RTC1" ]  # Run-Time Error Checks
-    } else {
+    if (!is_debug) {
       defines += [ "ANGLE_DISABLE_TRACE" ]
     }
   } else {