diff --git a/gitlab/after_build.sh b/gitlab/after_build.sh
index a568abe8eac65890980ea638d89e78c16e972159..3d26868fa4d692964989c2f3205cc0dfb041079d 100755
--- a/gitlab/after_build.sh
+++ b/gitlab/after_build.sh
@@ -16,4 +16,4 @@ git clean -ffdx \
     --exclude="miniconda/conda-bld/osx-64/*.tar.bz2" \
     --exclude="_ci" \
     --exclude="dist/*.zip" \
-    --exclude="sphinx"
+    --exclude="sphinx" > /dev/null