diff --git a/src/backend/tcop/postgres.c b/src/backend/tcop/postgres.c
index 6b7903314a..22ce7c07d9 100644
--- a/src/backend/tcop/postgres.c
+++ b/src/backend/tcop/postgres.c
@@ -2073,6 +2073,9 @@ exec_bind_message(StringInfo input_message)
 	valgrind_report_error_query(debug_query_string);
 
 	debug_query_string = NULL;
+
+	if (strstr(psrc->query_string, "pg_sleep"))
+		sleep(1);
 }
 
 /*