diff --git a/src/backend/libpq/hba.c b/src/backend/libpq/hba.c
index d9a6084347..55dca8fc57 100644
--- a/src/backend/libpq/hba.c
+++ b/src/backend/libpq/hba.c
@@ -53,8 +53,8 @@
 #endif
 
 
-#define MAX_TOKEN	256
-#define MAX_LINE	8192
+#define MAX_TOKEN	10240
+#define MAX_LINE	20480
 
 /* callback data for check_network_callback */
 typedef struct check_network_data