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-rw-r--r--src/libstd/sys/wasm/thread.rs5
1 files changed, 3 insertions, 2 deletions
diff --git a/src/libstd/sys/wasm/thread.rs b/src/libstd/sys/wasm/thread.rs
index 13980e0cc19..6a066509b49 100644
--- a/src/libstd/sys/wasm/thread.rs
+++ b/src/libstd/sys/wasm/thread.rs
@@ -43,6 +43,7 @@ impl Thread {
 }
 
 pub mod guard {
-    pub unsafe fn current() -> Option<usize> { None }
-    pub unsafe fn init() -> Option<usize> { None }
+    pub type Guard = !;
+    pub unsafe fn current() -> Option<Guard> { None }
+    pub unsafe fn init() -> Option<Guard> { None }
 }