diff --git a/Marlin/planner.cpp b/Marlin/planner.cpp
index 9869373586..ea9dcf284d 100644
--- a/Marlin/planner.cpp
+++ b/Marlin/planner.cpp
@@ -552,6 +552,8 @@ void Planner::check_axes_activity() {
       }
       else
         z_fade_factor = 1.0;
+    #else
+        constexpr float z_fade_factor = 1.0;
     #endif
 
     #if ENABLED(MESH_BED_LEVELING)