diff --git a/docker/backend/Dockerfile b/docker/backend/Dockerfile
index 586cb701e..447bd2891 100644
--- a/docker/backend/Dockerfile
+++ b/docker/backend/Dockerfile
@@ -1,6 +1,7 @@
 ARG FROM_IMG=docker.io/library/haskell
 ARG FROM_TAG=8.10.4
-FROM ${HASKELL_IMG}:${FROM_TAG}
+
+FROM ${FROM_IMG}:${FROM_TAG}
 
 ENV LANG=de_DE.UTF-8