diff --git a/src/lib/str.rs b/src/lib/str.rs
index 40b8728f0ab3..efa98b07857e 100644
--- a/src/lib/str.rs
+++ b/src/lib/str.rs
@@ -8,7 +8,7 @@ export lteq;
 // export hash;
 // export is_utf8;
 // export is_ascii;
-// export alloc;
+export alloc;
 export byte_len;
 export buf;
 // export bytes;