diff --git a/.travis.yml b/.travis.yml
index 7a3319c..55db71f 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -24,7 +24,7 @@ script:
   - docker exec ubuntu-build apt-get update -y
   - docker exec ubuntu-build apt-get install -y git cmake g++ pkg-config libcfitsio-bin libcfitsio-dev libopenblas-base libopenblas-dev wcslib-dev wcslib-tools libglib2.0-dev libcasa-casa2 casacore-dev casacore-data casacore-tools
   - |
-    docker exec ubuntu-build --env BRANCH=$BRANCH \
+    docker exec --env BRANCH=$BRANCH ubuntu-build \
         echo "Building SageCal" && \ 
         echo "Branch --> $BRANCH" && \
         cd / && \