diff --git a/bin/mailbox2matrix b/bin/mailbox2matrix
index f51b6a2..ac62fe2 100755
--- a/bin/mailbox2matrix
+++ b/bin/mailbox2matrix
@@ -13,7 +13,7 @@ from inotify_simple import INotify, flags
 
 
 def decode(header):
-    return make_hader(decode_header(header))
+    return make_header(decode_header(header))
 
 class Client(AsyncClient):