diff --git a/pkg/appimage/appimagebuild b/pkg/appimage/appimagebuild
index 64c5fc006e31633b0464a46959d5046a97aa0ff1..a73bb6651c044e66fd41531ba8e4f9e54d6843af 100755
--- a/pkg/appimage/appimagebuild
+++ b/pkg/appimage/appimagebuild
@@ -4,7 +4,7 @@ PKGNAME='pling-store'
 PKGVER='5.0.1'
 
 # Only timestamp development branches
-if [ "${CI_COMMIT_REF_SLUG}" != "master" ]; then
+if [[ "${CI_PROJECT_NAMESPACE}" == *"development"* ]]; then
   PKGREL=dev-${CI_COMMIT_SHORT_SHA}-$(date +"%Y%m%d-%H%M%S")
 else
   PKGREL='1'