diff --git a/beets/library.py b/beets/library.py
index c8cde3a01..dd8e77e03 100644
--- a/beets/library.py
+++ b/beets/library.py
@@ -615,7 +615,7 @@ class CollectionQuery(Query):
             term = match.group(2)
             for p in prefixes:
                 if term.startswith(p):
-                    return (key, term, p)
+                    return (key, term[len(p):], p)
             return (key, term, False)
 
     @classmethod