diff --git a/extras/ci/gitlab-ci.yml b/extras/ci/gitlab-ci.yml
index 4b9c28df78..a33918c7b6 100644
--- a/extras/ci/gitlab-ci.yml
+++ b/extras/ci/gitlab-ci.yml
@@ -20,6 +20,7 @@ default:
 
 variables:
     VLC_TEST_TIMEOUT: 60
+    FF_DISABLE_UMASK_FOR_DOCKER_EXECUTOR: "true"
     VLC_WIN64_IMAGE: registry.videolan.org/vlc-debian-win64-posix:20241118101328
     VLC_WIN_LLVM_MSVCRT_IMAGE: registry.videolan.org/vlc-debian-llvm-msvcrt:20250903131032
     VLC_WIN_LLVM_UCRT_IMAGE: registry.videolan.org/vlc-debian-llvm-ucrt:20250903131032