diff --git a/os/hal/ports/STM32/STM32L0xx/hal_lld.h b/os/hal/ports/STM32/STM32L0xx/hal_lld.h
index 24d8a8107..f1cbae0f3 100644
--- a/os/hal/ports/STM32/STM32L0xx/hal_lld.h
+++ b/os/hal/ports/STM32/STM32L0xx/hal_lld.h
@@ -1081,8 +1081,8 @@
  */
 #if (STM32_LPTIM1SEL == STM32_LPTIM1SEL_APB) || defined(__DOXYGEN__)
 #define STM32_LPTIM1CLK             STM32_PCLK1
-#elif STM32_LPTIM1SEL == STM32_LPTIM1SEL_SYSCLK
-#define STM32_LPTIM1CLK             STM32_SYSCLK
+#elif STM32_LPTIM1SEL == STM32_LPTIM1SEL_LSI
+#define STM32_LPTIM1CLK             STM32_LSICLK
 #elif STM32_LPTIM1SEL == STM32_LPTIM1SEL_HSI16
 #define STM32_LPTIM1CLK             STM32_HSI16CLK
 #elif STM32_LPTIM1SEL == STM32_LPTIM1SEL_LSE