diff --git a/chainsyncer/driver/base.py b/chainsyncer/driver/base.py
index 2826c64..392e0d7 100644
--- a/chainsyncer/driver/base.py
+++ b/chainsyncer/driver/base.py
@@ -115,7 +115,7 @@ class Syncer:
         raise NotImplementedError()
 
 
-    def get(self, conn)
+    def get(self, conn):
         raise NotImplementedError()