diff --git a/flow/connectors/postgres/qrep.go b/flow/connectors/postgres/qrep.go
index af272e4a0f..56d9cddcf7 100644
--- a/flow/connectors/postgres/qrep.go
+++ b/flow/connectors/postgres/qrep.go
@@ -93,7 +93,7 @@ func (c *PostgresConnector) getNumRowsPartitions(
 		}
 
 		// we know these are int64s so we can just cast them
-		minValInt := maxVal.(int64)
+		minValInt := minVal.(int64)
 		maxValInt := maxVal.(int64)
 
 		// we will only return 1 partition for xmin: