diff --git a/app/CMakeLists.txt b/app/CMakeLists.txt
index 9fce3b64..db56c538 100644
--- a/app/CMakeLists.txt
+++ b/app/CMakeLists.txt
@@ -56,3 +56,5 @@ target_sources_ifdef(CONFIG_ZMK_RGB_UNDERGLOW app PRIVATE src/rgb_underglow.c)
 target_sources(app PRIVATE src/endpoints.c)
 target_sources(app PRIVATE src/hid_listener.c)
 target_sources(app PRIVATE src/main.c)
+
+zephyr_cc_option(-Wfatal-errors)
\ No newline at end of file