diff --git a/bin/javadoc.sh b/bin/javadoc.sh
index 8f7905be2..82883b49b 100644
--- a/bin/javadoc.sh
+++ b/bin/javadoc.sh
@@ -1,2 +1,2 @@
 mkdir -p doc
-javadoc -d doc/ `find src -name "*.java" | grep -v generated`
+javadoc -d doc-$1/ `find src -name "*.java" | grep -v generated`