diff --git a/sql/sql_yacc.yy b/sql/sql_yacc.yy
index 8d1a668e98d..fab8f19950f 100644
--- a/sql/sql_yacc.yy
+++ b/sql/sql_yacc.yy
@@ -6795,6 +6795,7 @@ keyword:
 	| FIRST_SYM		{}
 	| FIXED_SYM		{}
 	| FLUSH_SYM		{}
+	| FRAC_SECOND_SYM	{}
 	| GEOMETRY_SYM		{}
 	| GEOMETRYCOLLECTION	{}
 	| GET_FORMAT		{}