diff --git a/deploy/venv.sls b/deploy/venv.sls
index 5e0f84801fc6d2649f61d7f2ee8d50c7f3854713..e4f60851f8c8375c487b0cae2df7babb095267c5 100644
--- a/deploy/venv.sls
+++ b/deploy/venv.sls
@@ -43,7 +43,7 @@ deploy_{{ project_name }}_venv:
         LC_CTYPE: en_US.UTF-8
         LC_ALL: en_US.UTF-8
         PIP_TRUSTED_HOST: apt-proxy.it.hs-hannover.de
-        PIP_INDEX_URL http://apt-proxy.it.hs-hannover.de:3141/root/pypi/+simple/
+        PIP_INDEX_URL: http://apt-proxy.it.hs-hannover.de:3141/root/pypi/+simple/
     - require:
         - file: deploy_venv_directory
         - pkg: deploy_venv_pkgs