diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 91c68787b10059d28fe10153bf7484b4d2d0033e..3841641bfb8246d98e4b7aeb100b5c5ab073e1bc 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -137,6 +137,7 @@ legal-check:
 debian-build:
   extends: .common-build
   image: $BUILD_IMAGE_REGISTRY/otb-debian-native:unstable
+  allow_failure: true
   script:
     - xvfb-run -a -n 1 -s "-screen 0 1024x768x24 -dpi 96" ctest -V -S CI/main_ci.cmake -DIMAGE_NAME:string=debian-unstable-gcc
   dependencies: []