diff --git a/src/protocol/pool_proto_modules.c b/src/protocol/pool_proto_modules.c
index 50974e1f1..7f5989ea1 100644
--- a/src/protocol/pool_proto_modules.c
+++ b/src/protocol/pool_proto_modules.c
@@ -3922,7 +3922,7 @@ per_node_error_log(POOL_CONNECTION_POOL * backend, int node_id, char *query, cha
 	if (pool_extract_error_message(true, CONNECTION(backend, node_id), MAJOR(backend), unread, &message) == 1)
 	{
 		ereport(LOG,
-				(errmsg("%s: DB node id: %d backend pid: %d statement: \"%s\" message: \"%s\"",
+				(errmsg("%sDB node id: %d backend pid: %d statement: \"%s\" message: \"%s\"",
 						prefix, node_id, ntohl(slot->pid), query, message)));
 		pfree(message);
 	}