diff --git a/src/hoiformat/hoiparser.ts b/src/hoiformat/hoiparser.ts
index 1b4f61c..1b9037d 100644
--- a/src/hoiformat/hoiparser.ts
+++ b/src/hoiformat/hoiparser.ts
@@ -106,7 +106,7 @@ function tokenizer<T extends string>(input: string, tokenRegexStrings: Record<T,
 type HOITokenType = 'comment' | 'symbol' | 'operator' | 'string' | 'number' | 'unitnumber' | 'eof';
 const tokenRegexStrings: Record<HOITokenType, [string, number]> = {
     comment: ['#.*(?:[\\r\\n]|$)', 0],
-    symbol: ['(?:\\d+\\.)?[a-zA-Z_@\\[\\]][\\w:\\._@\\[\\]\\-\\?\\^\\/\\u00A0-\\u024F]*', 40],
+    symbol: ['(?:\\d+\\.)?[a-zA-Z_@\\[\\]][\\w:\\._@\\[\\]\\-\\?\\^\\/\\u00A0-\\u024F|]*', 40],
     operator: ['[={}<>;,]|>=|<=|!=', 10],
     string: ['"(?:\\\\"|\\\\\\\\|[^"])*"', 10],
     number: ['-?\\d*\\.\\d+|-?\\d+|0x\\d+', 50],