diff --git a/build/build.xml b/build/build.xml
index 87ed33211..eb1e1c119 100644
--- a/build/build.xml
+++ b/build/build.xml
@@ -354,6 +354,7 @@
 
     <get src="http://download.processing.org/reference.zip" 
          dest="../java/reference.zip" 
+         ignoreerrors="true"
          usetimestamp="true" />
 
     <unzip dest="${target.path}/modes/java"