diff --git a/Makefile b/Makefile
index 9750dd97bf493766ce56baabe8295e437124f0a2..ab31bb49ce70dd9600036a58a3c8ad5add96a9d2 100644
--- a/Makefile
+++ b/Makefile
@@ -1,6 +1,7 @@
 NAME=k8r.eu/justjanne/quassel-docker
 ALPINE_VERSION=3.10
 QUASSEL_VERSION=
+QUASSEL_BRANCH=master
 ifeq ($(strip $(QUASSEL_VERSION)),)
 IMAGE_VERSION=trunk
 else