diff --git a/STM32L1xx_HAL_Driver/Src/stm32l1xx_ll_utils.c b/STM32L1xx_HAL_Driver/Src/stm32l1xx_ll_utils.c
index baad913..1ab24b6 100644
--- a/STM32L1xx_HAL_Driver/Src/stm32l1xx_ll_utils.c
+++ b/STM32L1xx_HAL_Driver/Src/stm32l1xx_ll_utils.c
@@ -24,8 +24,10 @@
 #ifdef  USE_FULL_ASSERT
 #include "stm32_assert.h"
 #else
+#if !defined(USE_HAL_DRIVER)
 #define assert_param(expr) ((void)0U)
 #endif
+#endif
 
 /** @addtogroup STM32L1xx_LL_Driver
   * @{