diff --git a/src/test/run-pass/extern-pub.rs b/src/test/run-pass/extern-pub.rs
index 2d6cc2c78de..27c45893930 100644
--- a/src/test/run-pass/extern-pub.rs
+++ b/src/test/run-pass/extern-pub.rs
@@ -1,7 +1,5 @@
-use std::libc;
-
 extern {
-    pub unsafe fn free(p: *libc::c_void);
+    pub unsafe fn free(p: *u8);
 }
 
 pub fn main() {