diff --git a/src/libstd/sys/wasi/thread.rs b/src/libstd/sys/wasi/thread.rs
index eedc584dde50..a399d1f844cb 100644
--- a/src/libstd/sys/wasi/thread.rs
+++ b/src/libstd/sys/wasi/thread.rs
@@ -4,7 +4,6 @@ use crate::io;
 use crate::mem;
 use crate::sys::{unsupported, Void};
 use crate::time::Duration;
-use libc;
 
 pub struct Thread(Void);