diff --git a/src/librustc_target/spec/windows_base.rs b/src/librustc_target/spec/windows_base.rs
index 188548b41fe75..5f59ca8a5a311 100644
--- a/src/librustc_target/spec/windows_base.rs
+++ b/src/librustc_target/spec/windows_base.rs
@@ -60,6 +60,8 @@ pub fn opts() -> TargetOptions {
             "-lgcc".to_string(),
             "-lgcc_eh".to_string(),
             "-lpthread".to_string(),
+            // libpthread depends on libmsvcrt, so we need to link it *again*.
+            "-lmsvcrt".to_string(),
             "-lkernel32".to_string(),
         ],
     );