diff --git a/envsetup.sh b/envsetup.sh
index bab2d25..2caec62 100644
--- a/envsetup.sh
+++ b/envsetup.sh
@@ -908,7 +908,7 @@
     echo "Running hat on $localFile"
     echo "View the output by pointing your browser at http://localhost:7000/"
     echo ""
-    hat $localFile
+    hat -JXmx512m $localFile
 }
 
 function getbugreports()