diff --git a/utils/tests/gitlab-ci-doc.yml b/utils/tests/gitlab-ci-doc.yml
index c30567da0..d16eaee38 100644
--- a/utils/tests/gitlab-ci-doc.yml
+++ b/utils/tests/gitlab-ci-doc.yml
@@ -26,16 +26,13 @@ doxygen:
     - CXX=$COMPILER ./ns3 configure --enable-examples --enable-tests --enable-asserts -d release
     - ./ns3 build
 #    - mkdir -p public/doxygen
-    - git remote add ns-3-origin https://gitlab.com/nsnam/ns-3-dev.git || true
-    - git fetch ns-3-origin
-#    - doc/doxygen.warnings.report.sh -f "$(git diff --name-only ns-3-origin/master --diff-filter=d | tr '\n' ' ' | sed 's/ $//g;s/ /\\\|/g')"
-    - export CHANGED_FILES=$(git diff --name-only ns-3-origin/master --diff-filter=d | tr '\n' ' ' | sed 's/ $//g;s/ /\\\|/g')
-    - doc/doxygen.warnings.report.sh -f "$CHANGED_FILES"
-#    - doc/doxygen.warnings.report.sh -f "$CHANGED_FILES" || EXIT_CODE=$?
-#    - if [ -z $EXIT_CODE ]; then export EXIT_CODE=0; fi;
-#    - if [ $EXIT_CODE -ne 0 ]; then if [ -z $CHANGED_FILES ]; then exit 0; fi; fi;
-#    - exit $EXIT_CODE
-
+# The following four lines were needed when ns-3 had warnings, and
+# it was necessary to have a filter to check only the files tocuhed by a MR.
+#    - git remote add ns-3-origin https://gitlab.com/nsnam/ns-3-dev.git || true
+#    - git fetch ns-3-origin
+#    - export CHANGED_FILES=$(git diff --name-only ns-3-origin/master --diff-filter=d | tr '\n' ' ' | sed 's/ $//g;s/ /\\\|/g')
+#    - doc/doxygen.warnings.report.sh -f "$CHANGED_FILES"
+    - doc/doxygen.warnings.report.sh
 #    - doxygen doc/doxygen.conf
 #    - mv doc/html/ public/doxygen
   cache: