diff --git a/ci/srht/on_master_success b/ci/srht/on_master_success
index 07632e737a4c6470dc42628b65e809ae55131d28..e565a1e3a8fcc8315be2a9f2e3820e4442d1fe96 100755
--- a/ci/srht/on_master_success
+++ b/ci/srht/on_master_success
@@ -15,6 +15,16 @@ VERSION="$1"
 OAUTH_TOKEN="$2"
 YML_FILE="tmp.yml"
 
+if [[ -z "$VERSION" ]]; then
+  echo "missing VERSION parameter"
+  exit 1
+fi
+
+if [[ -z "$OAUTH_TOKEN" ]]; then
+  echo "missing OAUTH_TOKEN parameter"
+  exit 1
+fi
+
 cat <<EOF >"$YML_FILE"
 image: alpine/latest
 packages: