diff --git a/platformio_tasmota_env32.ini b/platformio_tasmota_env32.ini
index ab7351d3f..415722e76 100644
--- a/platformio_tasmota_env32.ini
+++ b/platformio_tasmota_env32.ini
@@ -43,6 +43,7 @@ build_unflags           = ${env:tasmota32_base.build_unflags}
                           -Wswitch-unreachable
                           -Wstringop-overflow
                           -Wincompatible-pointer-types
+                          -Wnonnull-compare
 build_flags             = ${env:tasmota32_base.build_flags}
                           -Wno-switch-unreachable
                           -Wno-stringop-overflow