diff --git a/crates/libs/core/src/strings/hstring.rs b/crates/libs/core/src/strings/hstring.rs
index 72bbba8c1e..93c989bc72 100644
--- a/crates/libs/core/src/strings/hstring.rs
+++ b/crates/libs/core/src/strings/hstring.rs
@@ -66,7 +66,7 @@ impl HSTRING {
             return Ok(Self::new());
         }
 
-        let mut ptr = Header::alloc(len)?;
+        let ptr = Header::alloc(len)?;
 
         // Place each utf-16 character into the buffer and
         // increase len as we go along.