diff --git a/resources/tester/helper_346_3_route_save.cjs b/resources/tester/helper_346_3_route_save.cjs
index 173ab21be..b575f2e8d 100644
--- a/resources/tester/helper_346_3_route_save.cjs
+++ b/resources/tester/helper_346_3_route_save.cjs
@@ -120,7 +120,7 @@ const apply = loadTs(path.join(ROOT, "B05_Profile", "B05_Profile_UI_RouteEdit_Ap
     }),
     changed: () => changed,
     terrain: () => "sheet",
-    stationSnap: () => true,
+    snap: () => ({ stationSnap: true, stationSnapStep: 20 }), // 390-5 — 켬끔 · 간격 한 벌
     initial: { current: () => ({ mode: "follow" }), keep: () => (kept += 1) },
     onApplied: () => (rebuilt += 1),
   });
diff --git a/resources/tester/test_346_3_route_save_screen.py b/resources/tester/test_346_3_route_save_screen.py
index 53ea15f9d..a12e4f001 100644
--- a/resources/tester/test_346_3_route_save_screen.py
+++ b/resources/tester/test_346_3_route_save_screen.py
@@ -49,6 +49,7 @@ def test_초안은_계약_RouteDraft_꼴(out):
         "curveLock",
         "curveArc",
         "stationSnap",
+        "stationSnapStep",
         "terrain",
     }
     n = len(draft["nodes"])
@@ -57,6 +58,7 @@ def test_초안은_계약_RouteDraft_꼴(out):
     )
     assert draft["curveOn"] == [True, False, True] and draft["curveRadius"] == [None, 25, None]
     assert draft["stationSnap"] is True and draft["terrain"] == "sheet"
+    assert draft["stationSnapStep"] == 20  # 390-5 간격도 함께 실림
     assert out["body"]["initial"] == {"mode": "follow"}
     assert "balanced_profile" not in out["body"]  # 손으로 고친 노선 = 계획고 옮김만(349-0v)
     assert "as_initial" not in out["body"]  # 손으로 고친 노선 = 초기값 그대로