diff --git a/packages/mermaid/src/diagram.spec.ts b/packages/mermaid/src/diagram.spec.ts
index ae93a121a..99ce4e2c6 100644
--- a/packages/mermaid/src/diagram.spec.ts
+++ b/packages/mermaid/src/diagram.spec.ts
@@ -49,7 +49,7 @@ describe('diagram detection', () => {
       "Parse error on line 2:
       graph TD; A-->
       --------------^
-      Expecting 'AMP', 'COLON', 'PIPE', 'TESTSTR', 'DOWN', 'DEFAULT', 'NUM', 'COMMA', 'NODE_STRING', 'BRKT', 'MINUS', 'MULT', got 'EOF'"
+      Expecting 'AMP', 'COLON', 'PIPE', 'TESTSTR', 'DOWN', 'DEFAULT', 'NUM', 'COMMA', 'NODE_STRING', 'BRKT', 'MINUS', 'MULT', 'UNICODE_TEXT', got 'EOF'"
     `);
     await expect(getDiagramFromText('sequenceDiagram; A-->B')).rejects
       .toThrowErrorMatchingInlineSnapshot(`
diff --git a/packages/mermaid/src/diagrams/flowchart/parser/flow.jison b/packages/mermaid/src/diagrams/flowchart/parser/flow.jison
index 54d28b553..da5c3ef6f 100644
--- a/packages/mermaid/src/diagrams/flowchart/parser/flow.jison
+++ b/packages/mermaid/src/diagrams/flowchart/parser/flow.jison
@@ -572,7 +572,7 @@ style: styleComponent
 styleComponent: NUM | NODE_STRING| COLON | UNIT | SPACE | BRKT | STYLE | PCT ;
 
 /* Token lists */
-idStringToken  :  NUM | NODE_STRING | DOWN | MINUS | DEFAULT | COMMA | COLON | AMP | BRKT | MULT;
+idStringToken  :  NUM | NODE_STRING | DOWN | MINUS | DEFAULT | COMMA | COLON | AMP | BRKT | MULT | UNICODE_TEXT;
 
 textToken      :   TEXT | TAGSTART | TAGEND | UNICODE_TEXT;