diff --git a/src/components/draw-app/properties/CurvatureKiloMarkerProperty.vue b/src/components/draw-app/properties/CurvatureKiloMarkerProperty.vue
index 5674d06..1c4e491 100644
--- a/src/components/draw-app/properties/CurvatureKiloMarkerProperty.vue
+++ b/src/components/draw-app/properties/CurvatureKiloMarkerProperty.vue
@@ -40,6 +40,12 @@ watchEffect(() => {
         ks.kilometer = kiloMarkerModel.value.kilometerSystem[i].kilometer;
         ks.direction = kiloMarkerModel.value.kilometerSystem[i].direction;
       });
+    } else {
+      kilometerSystem.forEach((ks) => {
+        ks.coordinateSystem = '';
+        ks.kilometer = 0;
+        ks.direction = 0;
+      });
     }
   }
 });
diff --git a/src/components/draw-app/properties/SlopeKiloMarkerProperty.vue b/src/components/draw-app/properties/SlopeKiloMarkerProperty.vue
index 350a0c6..6c99ad5 100644
--- a/src/components/draw-app/properties/SlopeKiloMarkerProperty.vue
+++ b/src/components/draw-app/properties/SlopeKiloMarkerProperty.vue
@@ -40,6 +40,12 @@ watchEffect(() => {
         ks.kilometer = kiloMarkerModel.value.kilometerSystem[i].kilometer;
         ks.direction = kiloMarkerModel.value.kilometerSystem[i].direction;
       });
+    } else {
+      kilometerSystem.forEach((ks) => {
+        ks.coordinateSystem = '';
+        ks.kilometer = 0;
+        ks.direction = 0;
+      });
     }
   }
 });