diff --git a/utils/dartdevc/BUILD.gn b/utils/dartdevc/BUILD.gn
index e56bbfd..6069ad1 100644
--- a/utils/dartdevc/BUILD.gn
+++ b/utils/dartdevc/BUILD.gn
@@ -87,6 +87,7 @@
       "$abs_main",
       "-m",
       "-o$abs_output",
+      "--no-source-maps",
     ]
   }
 }