diff --git a/tests/drone/csp.yaml b/tests/drone/csp.yaml
index 01251e9ad58..6cba1070549 100644
--- a/tests/drone/csp.yaml
+++ b/tests/drone/csp.yaml
@@ -3,7 +3,8 @@ directives:
     - '''self'''
   connect-src:
     - '''self'''
-    - 'https://${KEYCLOAK_DOMAIN:-keycloak:8443}/'
+    # In contrast to bash and docker the default is given after the | character
+    - 'https://${KEYCLOAK_DOMAIN|keycloak:8443}/'
   default-src:
     - '''none'''
   font-src:
@@ -13,14 +14,16 @@ directives:
   frame-src:
     - '''self'''
     - 'https://embed.diagrams.net/'
-    - 'https://${ONLYOFFICE_DOMAIN:-onlyoffice:443}/'
-    - 'https://${COLLABORA_DOMAIN:-collabora:9980}/'
+    # In contrast to bash and docker the default is given after the | character
+    - 'https://${ONLYOFFICE_DOMAIN|onlyoffice:443}/'
+    - 'https://${COLLABORA_DOMAIN|collabora:9980}/'
   img-src:
     - '''self'''
     - 'data:'
     - 'blob:'
-    - 'https://${ONLYOFFICE_DOMAIN:-onlyoffice:443}/'
-    - 'https://${COLLABORA_DOMAIN:-collabora:9980}/'
+    # In contrast to bash and docker the default is given after the | character
+    - 'https://${ONLYOFFICE_DOMAIN|onlyoffice:443}/'
+    - 'https://${COLLABORA_DOMAIN|collabora:9980}/'
   manifest-src:
     - '''self'''
   media-src: