diff --git a/lib/nexrad/afos.py b/lib/nexrad/afos.py
index 504259d..011bc4b 100644
--- a/lib/nexrad/afos.py
+++ b/lib/nexrad/afos.py
@@ -67,7 +67,7 @@ def parse_lat(text: str):
 def parse_location(lon: str, lat: str):
     return shapely.Point(parse_lon(lon), parse_lat(lat))
 
-def parse_shape(text: str):
+def parse_poly(text: str):
     points = list()
     coords = text.split(' ')
 
@@ -247,7 +247,7 @@ class AFOSMessageParser():
         match = RE_POLY.match(line)
 
         if match is not None:
-            self.message.poly = parse_shape(match['coords'])
+            self.message.poly = parse_poly(match['coords'])
 
         match = RE_MOTION.match(line)