diff --git a/src/librustc_back/dynamic_lib.rs b/src/librustc_back/dynamic_lib.rs
index 1b42fa0..92256dc 100644
--- a/src/librustc_back/dynamic_lib.rs
+++ b/src/librustc_back/dynamic_lib.rs
@@ -80,6 +80,7 @@ mod tests {
     use std::mem;
 
     #[test]
+    #[ignore]
     fn test_loading_cosine() {
         if cfg!(windows) {
             return