diff --git a/support/docker/production/Dockerfile.stretch b/support/docker/production/Dockerfile.stretch
index 370d17cff..911d064f6 100644
--- a/support/docker/production/Dockerfile.stretch
+++ b/support/docker/production/Dockerfile.stretch
@@ -57,7 +57,7 @@ USER peertube
 RUN yarn install --pure-lockfile \
     && npm run build \
     && rm -r ./node_modules ./client/node_modules \
-    && yarn install --pure-lockfile --production
+    && yarn install --pure-lockfile --production \
     && yarn cache clean
 
 USER root