diff --git a/lexer_test.go b/lexer_test.go
index 2bc3225..a0a7293 100644
--- a/lexer_test.go
+++ b/lexer_test.go
@@ -66,6 +66,7 @@ func Test_Lexer(t *testing.T) {
 		{
 			name: "#heading", in: "[[#heading]]", expected: []wikilink.Lexeme{
 				{Typ: wikilink.LexOpenLink, Val: "[["},
+				{Typ: wikilink.LexIdent, Val: ""},
 				{Typ: wikilink.LexHeading, Val: "#"},
 				{Typ: wikilink.LexIdent, Val: "heading"},
 				{Typ: wikilink.LexCloseLink, Val: "]]"},