diff --git a/.travis.yml b/.travis.yml
index 432e42edb3bcf83b4b77dc0dcf59112abdf26b06..3628873619b24a8f8b6ab1ec992fc497d69bfcd9 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -37,7 +37,7 @@ after_success:
       docker login --username=$DOCKER_HUB_USERNAME --password=$DOCKER_HUB_PASSWORD;
 
       if [ ! -z "$TRAVIS_TAG" ]; then
-        DOCKER_IMAGE_TAG=$TRAVIS_TAG;
+        DOCKER_IMAGE_TAG=${TRAVIS_TAG#?};
       else
         DOCKER_IMAGE_TAG=unstable;
       fi;