diff --git a/Makefile b/Makefile
index 3034f5bd9..ac629f1d0 100644
--- a/Makefile
+++ b/Makefile
@@ -16,7 +16,7 @@ BIND_DIR := "dist"
 TRAEFIK_MOUNT := -v "$(CURDIR)/$(BIND_DIR):/go/src/github.com/containous/traefik/$(BIND_DIR)"
 
 GIT_BRANCH := $(subst heads/,,$(shell git rev-parse --abbrev-ref HEAD 2>/dev/null))
-TRAEFIK_DEV_IMAGE := traefik-dev$(if $(GIT_BRANCH),:$(GIT_BRANCH))
+TRAEFIK_DEV_IMAGE := traefik-dev$(if $(GIT_BRANCH),:$(subst /,-,$(GIT_BRANCH)))
 REPONAME := $(shell echo $(REPO) | tr '[:upper:]' '[:lower:]')
 TRAEFIK_IMAGE := $(if $(REPONAME),$(REPONAME),"containous/traefik")
 INTEGRATION_OPTS := $(if $(MAKE_DOCKER_HOST),-e "DOCKER_HOST=$(MAKE_DOCKER_HOST)", -v "/var/run/docker.sock:/var/run/docker.sock")