diff --git a/Dockerfile b/Dockerfile
index 0d4514ea1a67709584e7e63ec047aa4687c76ac3..97f104e9c24b568b9245c2c32d9943056827cc47 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -20,8 +20,8 @@ RUN apk add --no-cache \
   qt5-qtbase-postgresql \
   qt5-qtbase-sqlite
 
-ARG QUASSEL_VERSION=""
-ARG QUASSEL_BRANCH="master"
+ARG QUASSEL_VERSION="0.13.1"
+ARG QUASSEL_BRANCH="0.13"
 ARG QUASSEL_REPO="https://github.com/quassel/quassel"
 
 RUN if [ "$QUASSEL_BRANCH" = "0.13" ]; then \