diff --git a/Marlin/Marlin.pde b/Marlin/Marlin.pde
index ce7522dd4a33b..c5101272110f4 100644
--- a/Marlin/Marlin.pde
+++ b/Marlin/Marlin.pde
@@ -1384,6 +1384,9 @@ void prepare_move() {
   float cartesian_mm = sqrt(sq(difference[X_AXIS]) +
 			    sq(difference[Y_AXIS]) +
 			    sq(difference[Z_AXIS]));
+  if ( cartesian_mm < 0.000001 ) {
+    cartesian_mm = abs(difference[E_AXIS]);
+  }
   if ( cartesian_mm < 0.000001 ) {
     return;
   }