diff --git a/lib/xmet/spc.py b/lib/xmet/spc.py
index e38efed..9d0f331 100644
--- a/lib/xmet/spc.py
+++ b/lib/xmet/spc.py
@@ -68,10 +68,8 @@ def parse_coord(coord: str) -> tuple[float, float]:
     if lon <= 6100:
         lon += 10000
 
-    return (
-        0.01 * -lon,
-        0.01 * int(coord[0:4])
-    )
+    return shapely.Point(0.01 * -lon,
+                         0.01 * int(coord[0:4]))
 
 def each_poly(parts: list[str]):
     points = list()