diff --git a/build.properties b/build.properties
index 9f348fa..a644f8f 100644
--- a/build.properties
+++ b/build.properties
@@ -27,7 +27,7 @@
 src.debug = on
 
 # JVM options for <compc> and <mxmlc> tasks
-jvm.args = ${local.d32} -Xms64m -Xmx384m -ea -Dapple.awt.UIElement=true
+jvm.args = ${local.d32} -Xms64m -Xmx384m -XX:MaxPermSize=768m -ea -Dapple.awt.UIElement=true
     # -d32/-d64 for 32-bit/64-bit code model (or don't specify for the default)
 	# -Xms64m: start out with a 64 MB heap
 	# -Xmx512m: allow the heap to grow to 512 MB