diff --git a/doc/fluid/design/ir/draft.md b/doc/fluid/design/ir/draft.md
index f5148c5cbfec62890bed7eded80105b2b97c4ca2..ac40c2efde57e53892022820948c31a4a0f19084 100644
--- a/doc/fluid/design/ir/draft.md
+++ b/doc/fluid/design/ir/draft.md
@@ -86,4 +86,4 @@ maintaining the original modeling logic.
 * Graph is transformed from raw model logic to a
 form that is efficient to execute.
 
-Program->ProgramToGraph->Graph->Pass1->Graph->Pass2->Graph->Pass3->Executor
+Program->ProgramToGraph->Graph->Pass1->Graph->Pass2->Graph->Pass3->Graph->Executor