diff --git a/dda.c b/dda.c
index bf5db44..fd4b806 100644
--- a/dda.c
+++ b/dda.c
@@ -756,8 +756,8 @@ void dda_clock() {
   uint32_t move_step_no, move_c;
   int32_t move_n;
   uint8_t recalc_speed;
-  #endif
   uint8_t current_id ;
+  #endif
 
   dda = queue_current_movement();
   if (dda != last_dda) {
diff --git a/dda.h b/dda.h
index a1a45db..10a5ea3 100644
--- a/dda.h
+++ b/dda.h
@@ -119,6 +119,7 @@ typedef struct {
 
 	#ifdef ACCELERATION_REPRAP
 	uint32_t					end_c; ///< time between 2nd last step and last step
+	int32_t						n;     ///< precalculated step time offset variable
 	#endif
 	#ifdef ACCELERATION_RAMPING
   /// precalculated step time offset variable