diff --git a/.github/workflows/Ubuntu2004-Makefile.yml b/.github/workflows/Ubuntu2004-Makefile.yml
index 7d637ad8cba..3a8acd309f3 100644
--- a/.github/workflows/Ubuntu2004-Makefile.yml
+++ b/.github/workflows/Ubuntu2004-Makefile.yml
@@ -14,6 +14,6 @@ jobs:
     - name: install dependencies
       run: sudo apt-get update && sudo apt-get install -y subversion libxml-xpath-perl git mawk zip unzip p7zip xz-utils make binutils gcc g++ clang tcc pcc pkg-config help2man doxygen autoconf autoconf-archive automake libtool ccache zlib1g-dev libmpg123-dev libogg-dev libvorbis-dev portaudio19-dev libpulse-dev libsdl2-dev libflac-dev libsndfile1-dev libltdl-dev
     - name: make
-      run: make
+      run: make STRICT=1
     - name: make check
-      run: make check
+      run: make STRICT=1 check