diff --git a/stmhal/hal/f7/src/stm32f7xx_hal.c b/stmhal/hal/f7/src/stm32f7xx_hal.c
index 7e123518b6..b92d22e6c4 100644
--- a/stmhal/hal/f7/src/stm32f7xx_hal.c
+++ b/stmhal/hal/f7/src/stm32f7xx_hal.c
@@ -89,7 +89,7 @@
 /** @addtogroup HAL_Private_Variables
   * @{
   */
-static __IO uint32_t uwTick;
+__IO uint32_t uwTick;
 /**
   * @}
   */