diff --git a/cpu/cortexm_common/include/cpu.h b/cpu/cortexm_common/include/cpu.h
index d79d654953..117cec92d5 100644
--- a/cpu/cortexm_common/include/cpu.h
+++ b/cpu/cortexm_common/include/cpu.h
@@ -170,12 +170,7 @@ static inline void cortexm_sleep(int deep)
     unsigned state = irq_disable();
     __DSB();
     __WFI();
-#if defined(CPU_MODEL_STM32L152RE)
-    /* STM32L152RE crashes if branching to irq_restore(state). See #11830. */
-    __set_PRIMASK(state);
-#else
     irq_restore(state);
-#endif
 }
 
 /**