diff --git a/src/filterspec.ts b/src/filterspec.ts
index 5e0ff76..2fddf7c 100644
--- a/src/filterspec.ts
+++ b/src/filterspec.ts
@@ -114,7 +114,7 @@ export function otherTagExprParse(rest: string): parse.PResult<TagExpr> {
 }
 
 export function tagExprParse(rest: string): parse.PResult<TagExpr> {
-    return binOpExprOrOther.or(otherTagExpr).parse(rest)
+    return binOpExprOrOther.parse(rest)
 }
 
 export let everyNNights: P<EveryNNights> =