diff --git a/STM32/cores/arduino/stm32_HAL/stm32XXxx_hal.c b/STM32/cores/arduino/stm32_HAL/stm32XXxx_hal.c
index 79868c7..0bdce46 100644
--- a/STM32/cores/arduino/stm32_HAL/stm32XXxx_hal.c
+++ b/STM32/cores/arduino/stm32_HAL/stm32XXxx_hal.c
@@ -1,5 +1,9 @@
 #include "stm32_build_defines.h"
 
+// Ignore HAL errors when compiling with -Werror
+#pragma GCC diagnostic ignored "-Wsign-compare"
+#pragma GCC diagnostic ignored "-Wparentheses"
+
 #ifdef STM32F0
     #include "stm32f0xx_hal.c"
     #include "stm32f0xx_hal_adc.c"
diff --git a/STM32/cores/arduino/stm32_HAL/stm32XXxx_hal_ex.c b/STM32/cores/arduino/stm32_HAL/stm32XXxx_hal_ex.c
index 404092f..f06a9e6 100644
--- a/STM32/cores/arduino/stm32_HAL/stm32XXxx_hal_ex.c
+++ b/STM32/cores/arduino/stm32_HAL/stm32XXxx_hal_ex.c
@@ -1,5 +1,8 @@
 #include "stm32_build_defines.h"
 
+// Ignore HAL errors when compiling with -Werror
+#pragma GCC diagnostic ignored "-Wsign-compare"
+
 #ifdef STM32F0
     #include "stm32f0xx_hal_adc_ex.c"
     #include "stm32f0xx_hal_cortex.c"