diff --git a/build/scripts/utils.gant b/build/scripts/utils.gant
index f195049859dd..b1287c5636e0 100644
--- a/build/scripts/utils.gant
+++ b/build/scripts/utils.gant
@@ -742,6 +742,7 @@ binding.setVariable("zipSources", { String home, String targetDir ->
         include(name: "**/*.$it")
       }
       exclude(name: "**/testData/**")
+      exclude(name: "out/**")
     }
   }