diff --git a/project.clj b/project.clj
index de02375..82960ae 100644
--- a/project.clj
+++ b/project.clj
@@ -87,6 +87,7 @@
                        :externs       ["react/externs/react.js"]
                        :optimizations :advanced
                        :pretty-print  false
+                       :closure-defines {goog.DEBUG false}
                        :closure-warnings
                        {:externs-validation :off :non-standard-jsdoc :off}}}}}