diff --git a/.github/workflows/linux.yml b/.github/workflows/linux.yml
index ef2a521e7..1caa8d3ba 100644
--- a/.github/workflows/linux.yml
+++ b/.github/workflows/linux.yml
@@ -102,7 +102,8 @@ jobs:
           fi
 
           ./configure.sh \
-          -D CMAKE_CXX_FLAGS="-s" \
+          -D CMAKE_C_FLAGS="-Werror -s" \
+          -D CMAKE_CXX_FLAGS="-Werror -s" \
           -D TDESKTOP_API_TEST=ON \
           -D DESKTOP_APP_USE_PACKAGED=OFF \
           -D DESKTOP_APP_DISABLE_CRASH_REPORTS=OFF \
diff --git a/.github/workflows/mac.yml b/.github/workflows/mac.yml
index 26a625dca..94c164fcf 100644
--- a/.github/workflows/mac.yml
+++ b/.github/workflows/mac.yml
@@ -515,6 +515,8 @@ jobs:
           fi
 
           ./configure.sh \
+          -D CMAKE_C_FLAGS="-Werror" \
+          -D CMAKE_CXX_FLAGS="-Werror" \
           -D TDESKTOP_API_TEST=ON \
           -D DESKTOP_APP_USE_PACKAGED=OFF \
           -D DESKTOP_APP_DISABLE_CRASH_REPORTS=OFF \