diff --git a/firmware/target/arm/as3525/kernel-as3525.c b/firmware/target/arm/as3525/kernel-as3525.c
index 1338a46410..34ef54cfdf 100644
--- a/firmware/target/arm/as3525/kernel-as3525.c
+++ b/firmware/target/arm/as3525/kernel-as3525.c
@@ -111,6 +111,7 @@ static inline void do_sw_pwm(void)
 {
     if (!timer2_pwm_on) {
         do_scrollwheel();  /* Handle scrollwheel and tick tasks */
+        return;
     }
 
     timer2_pwm_state ^= 1;