diff --git a/nodepool/scripts/configure_mirror.sh b/nodepool/scripts/configure_mirror.sh
index 65bb487adb..c35c4bda9a 100755
--- a/nodepool/scripts/configure_mirror.sh
+++ b/nodepool/scripts/configure_mirror.sh
@@ -96,7 +96,7 @@ export NODEPOOL_UCA_MIRROR=${NODEPOOL_UCA_MIRROR:-http://$NODEPOOL_MIRROR_HOST/u
 export NODEPOOL_MARIADB_MIRROR=${NODEPOOL_MARIADB_MIRROR:-http://$NODEPOOL_MIRROR_HOST/ubuntu-mariadb}
 # Reverse proxy servers
 export NODEPOOL_BUILDLOGS_CENTOS_PROXY=${NODEPOOL_BUILDLOGS_CENTOS_PROXY:-http://$NODEPOOL_MIRROR_HOST:8080/buildlogs.centos}
-export NODEPOOL_DOCKER_REGISTRY_PROXY=${NODEPOOL_DOCKER_REGISTRY_PROXY:-http://$NODEPOOL_MIRROR_HOST:8081/registry-1.docker}
+export NODEPOOL_DOCKER_REGISTRY_PROXY=${NODEPOOL_DOCKER_REGISTRY_PROXY:-http://$NODEPOOL_MIRROR_HOST:8081/registry-1.docker/}
 export NODEPOOL_RDO_PROXY=${NODEPOOL_RDO_PROXY:-http://$NODEPOOL_MIRROR_HOST:8080/rdo}
 export NODEPOOL_RUGYGEMS_PROXY=${NODEPOOL_RUBYGEMS_PROXY:-http://$NODEPOOL_MIRROR_HOST:8080/rubygems/}
 export NODEPOOL_NPM_REGISTRY_PROXY=${NODEPOOL_NPM_REGISTRY_PROXY:-http://$NODEPOOL_MIRROR_HOST:8080/registry.npmjs}