diff --git a/resources/definitions/ultimaker3.def.json b/resources/definitions/ultimaker3.def.json
index 05f74c6342..64948b4fe9 100644
--- a/resources/definitions/ultimaker3.def.json
+++ b/resources/definitions/ultimaker3.def.json
@@ -154,6 +154,6 @@
         "wall_0_inset": { "value": "0" },
         "wall_line_width_x": { "value": "round(wall_line_width * 0.3 / 0.35, 2)" },
         "wall_thickness": { "value": "1" },
-        "zig_zaggify_infill": { "value": "True" }
+        "zig_zaggify_infill": { "value": "gradual_infill_steps == 0" }
     }
 }
diff --git a/resources/definitions/ultimaker_s5.def.json b/resources/definitions/ultimaker_s5.def.json
index a69e10e343..c8c8d258d3 100644
--- a/resources/definitions/ultimaker_s5.def.json
+++ b/resources/definitions/ultimaker_s5.def.json
@@ -154,6 +154,6 @@
         "optimize_wall_printing_order": { "value": "True" },
         "retraction_combing": { "default_value": "all" },
         "initial_layer_line_width_factor": { "value": "120" },
-        "zig_zaggify_infill": { "value": "True" }
+        "zig_zaggify_infill": { "value": "gradual_infill_steps == 0" }
     }
 }