diff --git a/packaging/docker/CMakeLists.txt b/packaging/docker/CMakeLists.txt
index f1a54e669..4ba5ede52 100644
--- a/packaging/docker/CMakeLists.txt
+++ b/packaging/docker/CMakeLists.txt
@@ -22,7 +22,7 @@
 
 set(DOCKER_FILE Dockerfile)
 set(DOCKER_IMAGE villas/node)
-set(DOCKER_TAG ${GIT_BRANCH})
+set(DOCKER_TAG ${CMAKE_PROJECT_GIT_BRANCH})
 set(DOCKER_RUN_OPTS
 	--interactive
 	--tty