diff --git a/main.sh b/main.sh
index f8b76ac..c846c37 100755
--- a/main.sh
+++ b/main.sh
@@ -14,7 +14,7 @@ package="$(dpkg-parsechangelog -S Source)"
 version="$(dpkg-parsechangelog -S Version)"
 distribution="$(dpkg-parsechangelog -S Distribution | sed 's/UNRELEASED/unstable/')"
 
-container="$package_$version"
+container="$package-$version"
 image="$os:$distribution"
 
 docker create \