diff --git a/README.md b/README.md
index 8d6bcdc..734f31f 100644
--- a/README.md
+++ b/README.md
@@ -176,6 +176,8 @@ def formatstreetname(name):
         return "O'Neil"
     if nameUp == "O'TOOLE":
         return "O'Toole"
+    if nameUp == "MCARTHUR":
+        return "McArthur"
     # Suffixes
     if nameUp == "AV":
         return "Avenue"