diff --git a/core/postfix/Dockerfile b/core/postfix/Dockerfile
index dedc176e..4cd73b1e 100644
--- a/core/postfix/Dockerfile
+++ b/core/postfix/Dockerfile
@@ -1,7 +1,7 @@
 FROM alpine:3.8
 
 RUN apk add --no-cache postfix postfix-pcre rsyslog \
-    python3 py3-pip \
+ && python3 py3-pip \
  && pip3 install --upgrade pip
  && pip3 install jinja2 podop tenacity