diff --git a/Marlin/Conditionals_post.h b/Marlin/Conditionals_post.h
index fae3d1b7fb..f30e8e8c3b 100644
--- a/Marlin/Conditionals_post.h
+++ b/Marlin/Conditionals_post.h
@@ -119,6 +119,13 @@
     #define Z_HOME_POS (Z_HOME_DIR < 0 ? Z_MIN_POS : Z_MAX_POS)
   #endif
 
+  /**
+   * If DELTA_HEIGHT isn't defined use the old setting
+   */
+  #if ENABLED(DELTA) && !defined(DELTA_HEIGHT)
+    #define DELTA_HEIGHT Z_HOME_POS
+  #endif
+
   /**
    * Auto Bed Leveling and Z Probe Repeatability Test
    */