diff --git a/Marlin/Configuration_adv.h b/Marlin/Configuration_adv.h
index 98d0da27561b..de9f68cdf385 100644
--- a/Marlin/Configuration_adv.h
+++ b/Marlin/Configuration_adv.h
@@ -68,8 +68,8 @@
 
 // When first starting the main fan, run it at full speed for the
 // given number of milliseconds.  This gets the fan spinning reliably
-// before setting a PWM value.  Set to zero to disable.
-#define FAN_KICKSTART_TIME 100
+// before setting a PWM value. (Does not work with software PWM for fan on Sanguinololu)
+//#define FAN_KICKSTART_TIME 100
 
 //===========================================================================
 //=============================Mechanical Settings===========================
diff --git a/Marlin/planner.cpp b/Marlin/planner.cpp
index 6173bcea3ace..5101e18219c3 100644
--- a/Marlin/planner.cpp
+++ b/Marlin/planner.cpp
@@ -466,23 +466,23 @@ void check_axes_activity()
   }
 #if FAN_PIN > -1
   #ifndef FAN_SOFT_PWM
-  if (FAN_KICKSTART_TIME) {
-    static unsigned long FanKickEnd;
-    if (tail_fan_speed) {
-      if (FanKickEnd == 0) {
-        // Just starting up fan - run at full power.
-        FanKickEnd = millis() + FAN_KICKSTART_TIME;
-        tail_fan_speed = 255;
-      } else if (FanKickEnd > millis())
-        // Fan still spinning up.
-        tail_fan_speed = 255;
-    } else {
-      FanKickEnd = 0;
-    }
-  }
-  analogWrite(FAN_PIN,tail_fan_speed);
-  #endif
-#endif
+    #ifdef FAN_KICKSTART_TIME
+      static unsigned long fan_kick_end;
+      if (tail_fan_speed) {
+        if (fan_kick_end == 0) {
+          // Just starting up fan - run at full power.
+          fan_kick_end = millis() + FAN_KICKSTART_TIME;
+          tail_fan_speed = 255;
+        } else if (fan_kick_end > millis())
+          // Fan still spinning up.
+          tail_fan_speed = 255;
+      } else {
+        fan_kick_end = 0;
+      }
+    #endif//FAN_KICKSTART_TIME
+    analogWrite(FAN_PIN,tail_fan_speed);
+  #endif//!FAN_SOFT_PWM
+#endif//FAN_PIN > -1
 #ifdef AUTOTEMP
   getHighESpeed();
 #endif