1 files changed, 2 insertions, 3 deletions
diff --git a/src/libstd/sys/windows/thread_local.rs b/src/libstd/sys/windows/thread_local.rs
index db2ad1d89c4..386d21a04c7 100644
--- a/src/libstd/sys/windows/thread_local.rs
+++ b/src/libstd/sys/windows/thread_local.rs
@@ -69,9 +69,8 @@ static mut DTORS: *mut Vec<(Key, Dtor)> = ptr::null_mut();
 pub unsafe fn create(dtor: Option<Dtor>) -> Key {
     let key = c::TlsAlloc();
     assert!(key != c::TLS_OUT_OF_INDEXES);
-    match dtor {
-        Some(f) => register_dtor(key, f),
-        None => {}
+    if let Some(f) = dtor {
+        register_dtor(key, f);
     }
     return key;
 }