diff --git a/git-version b/git-version
index 2a83e225..9a3de8c8 100755
--- a/git-version
+++ b/git-version
@@ -15,7 +15,7 @@ fi
 
 # check for changed files (not untracked files)
 if [ -n "$(git diff --shortstat 2> /dev/null | tail -n1)" ]; then
-	VERSION="${VERSION}+dirty"
+	VERSION="${VERSION}-dirty"
 fi
 
 echo $VERSION