diff --git a/build.sh b/build.sh
index 3d7d04a..6a9a40a 100755
--- a/build.sh
+++ b/build.sh
@@ -15,7 +15,7 @@ TYPE=$3
 URL=$4
 REVISION=$5
 
-FILENAME="nwjs-${TYPE}_$VERSION-$REVISION_$ARCH.deb"
+FILENAME="nwjs-${TYPE}_$VERSION-${REVISION}_$ARCH.deb"
 
 mkdir -p out