diff --git a/run_tests.sh b/run_tests.sh
index 7f0164cdfe0..cb892cc371b 100755
--- a/run_tests.sh
+++ b/run_tests.sh
@@ -247,7 +247,7 @@ then
        shift
     fi
     echo "Launching docker container for testing..."
-    docker $DOCKER_EXTRA_ARGS run $DOCKER_RUN_EXTRA_ARGS -e "GALAXY_TEST_DATABASE_TYPE=$db_type" --rm -v `pwd`:/galaxy $DOCKER_IMAGE "$@"
+    docker $DOCKER_EXTRA_ARGS run $DOCKER_RUN_EXTRA_ARGS -e "BUILD_NUMBER=$BUILD_NUMBER" -e "GALAXY_TEST_DATABASE_TYPE=$db_type" --rm -v `pwd`:/galaxy $DOCKER_IMAGE "$@"
     exit $?
 fi