diff --git a/.travis/common.sh b/.travis/common.sh
index a20ab43fa..f2047ed5f 100755
--- a/.travis/common.sh
+++ b/.travis/common.sh
@@ -34,19 +34,6 @@ then
   exit 0;
 fi
 
-# variables QUAY_USERNAME and QUAY_PASSWORD are required to push docker images
-if [ "$QUAY_USERNAME" == "" ];
-then
-  echo "Environment variable QUAY_USERNAME is missing.";
-  exit 0;
-fi
-
-if [ "$QUAY_PASSWORD" == "" ];
-then
-  echo "Environment variable QUAY_PASSWORD is missing.";
-  exit 0;
-fi
-
 SKIP_MESSAGE="Publication of docker image to quay.io registry skipped."
 
 if [ "$TRAVIS_EVENT_TYPE" != "api" ];
@@ -67,6 +54,19 @@ then
   exit 0;
 fi
 
+# variables QUAY_USERNAME and QUAY_PASSWORD are required to push docker images
+if [ "$QUAY_USERNAME" == "" ];
+then
+  echo "Environment variable QUAY_USERNAME is missing.";
+  exit 0;
+fi
+
+if [ "$QUAY_PASSWORD" == "" ];
+then
+  echo "Environment variable QUAY_PASSWORD is missing.";
+  exit 0;
+fi
+
 function docker_tag_exists() {
     TAG=${2//\"/}
     IMAGES=$(curl -s -H "Authorization: Bearer ${QUAY_PASSWORD}" https://quay.io/api/v1/repository/$1/image/ | jq '.images | sort_by(.sort_index) | .[] .tags | select(.[] !=null) | .[0]' | sed s/\"//g)