diff --git a/contrib/babelfishpg_tsql/src/backend_parser/gram-tsql-rule.y b/contrib/babelfishpg_tsql/src/backend_parser/gram-tsql-rule.y
index 1e4d669bde..95f3aa8c32 100644
--- a/contrib/babelfishpg_tsql/src/backend_parser/gram-tsql-rule.y
+++ b/contrib/babelfishpg_tsql/src/backend_parser/gram-tsql-rule.y
@@ -4244,7 +4244,8 @@ tsql_IsolationLevelStr:
 				}
 			| REPEATABLE READ
 				{
-					if(pltsql_enable_repeatable_read_isolation_level){
+					if(pltsql_enable_repeatable_read_isolation_level)
+					{
 						TSQLInstrumentation(INSTR_TSQL_ISOLATION_LEVEL_REPEATABLE_READ);
 						$$ = "repeatable read";	
 					}
@@ -4264,7 +4265,8 @@ tsql_IsolationLevelStr:
 				}
 			| SERIALIZABLE
 				{
-					if(pltsql_enable_serializable_isolation_level){
+					if(pltsql_enable_serializable_isolation_level)
+					{
 						TSQLInstrumentation(INSTR_TSQL_ISOLATION_LEVEL_SERIALIZABLE);
 						$$ = "serializable";
 					}
diff --git a/contrib/babelfishpg_tsql/src/guc.c b/contrib/babelfishpg_tsql/src/guc.c
index e9f109da04..0e5ef25a97 100644
--- a/contrib/babelfishpg_tsql/src/guc.c
+++ b/contrib/babelfishpg_tsql/src/guc.c
@@ -1182,7 +1182,7 @@ define_custom_variables(void)
 							 &pltsql_enable_repeatable_read_isolation_level,
 							 false,
 							 PGC_USERSET,
-							 GUC_NOT_IN_SAMPLE ,
+							 GUC_NO_SHOW_ALL | GUC_NOT_IN_SAMPLE | GUC_DISALLOW_IN_AUTO_FILE,
 							 NULL, NULL, NULL);
 	
 	DefineCustomBoolVariable("babelfishpg_tsql.enable_serializable_isolation_level",
@@ -1191,7 +1191,7 @@ define_custom_variables(void)
 							 &pltsql_enable_serializable_isolation_level,
 							 false,
 							 PGC_USERSET,
-							 GUC_NOT_IN_SAMPLE ,
+							 GUC_NO_SHOW_ALL | GUC_NOT_IN_SAMPLE | GUC_DISALLOW_IN_AUTO_FILE,
 							 NULL, NULL, NULL);
 }