diff --git a/src/imp_std.rs b/src/imp_std.rs
index d7ccc85..6e365fd 100644
--- a/src/imp_std.rs
+++ b/src/imp_std.rs
@@ -253,6 +253,7 @@ mod tests {
     }
 
     #[test]
+    #[cfg(not(miri))]
     fn stampede_once() {
         static O: OnceCell<()> = OnceCell::new();
         static mut RUN: bool = false;