diff --git a/.github/workflows/GNU.yml b/.github/workflows/GNU.yml
index 30c109cda..a6e740319 100644
--- a/.github/workflows/GNU.yml
+++ b/.github/workflows/GNU.yml
@@ -6,7 +6,6 @@ jobs:
   gnu:
     name: Run GNU tests
     runs-on: ubuntu-latest
-    timeout-minutes: 240 # Kill after 4 hours in case something gets stuck
     steps:
       # Checks out a copy of your repository on the ubuntu-latest machine
     - name: Checkout code uutil
@@ -86,7 +85,7 @@ jobs:
         GNULIB_DIR="${PWD}/gnulib"
         pushd gnu
 
-        unbuffer make -j "$(nproc)" check SUBDIRS=. RUN_EXPENSIVE_TESTS=yes RUN_VERY_EXPENSIVE_TESTS=yes VERBOSE=no || :
+        unbuffer timeout -sKILL 4h make -j "$(nproc)" check SUBDIRS=. RUN_EXPENSIVE_TESTS=yes RUN_VERY_EXPENSIVE_TESTS=yes VERBOSE=no || : # Kill after 4 hours in case something gets stuck in make
     - name: Extract tests info
       shell: bash
       run: |