diff --git a/wikiq b/wikiq
index 5ce219d..acdded6 100755
--- a/wikiq
+++ b/wikiq
@@ -273,7 +273,7 @@ class RevDataBase:
         pa.field("minor",pa.bool_()),
         pa.field("editor",pa.string()),
         pa.field("anon",pa.bool_()),
-        pa.field("edit_summary",pa.bool_())
+        pa.field("edit_summary",pa.string())
     ]
 
     # pyarrow is a columnar format, so most of the work happens in the flush_parquet_buffer function