diff --git a/Dockerfile b/Dockerfile
index 6ed3dae..fc331f9 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -58,7 +58,7 @@ python3 \
 python3-dev
 
 ENV MOLECULE_PLUGINS="\
-molecule-hetznercloud
+molecule-hetznercloud \
 "
 
 # https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=917006