diff --git a/src/libfuzzer/ast_match.rs b/src/libfuzzer/ast_match.rs
index d0bbcc024815..8a22f0a06897 100644
--- a/src/libfuzzer/ast_match.rs
+++ b/src/libfuzzer/ast_match.rs
@@ -10,7 +10,6 @@
 
 use core::prelude::*;
 
-use std;
 use vec;
 
 fn vec_equal<T>(v: ~[T],
diff --git a/src/libfuzzer/cycles.rs b/src/libfuzzer/cycles.rs
index 5f7152f109f2..2256325fa437 100644
--- a/src/libfuzzer/cycles.rs
+++ b/src/libfuzzer/cycles.rs
@@ -10,8 +10,8 @@
 
 use core::prelude::*;
 
-use std;
-use std::rand;
+use extra;
+use extra::rand;
 use uint::range;
 
 // random uint less than n
diff --git a/src/libfuzzer/fuzzer.rc b/src/libfuzzer/fuzzer.rc
index aac6796f30c2..c993796639f1 100644
--- a/src/libfuzzer/fuzzer.rc
+++ b/src/libfuzzer/fuzzer.rc
@@ -23,7 +23,7 @@
 #[no_std];
 
 extern mod core(name = "std", vers = "0.7-pre");
-extern mod std(name = "extra", vers = "0.7-pre");
+extern mod extra(name = "extra", vers = "0.7-pre");
 
 extern mod syntax(vers = "0.7-pre");
 
diff --git a/src/libfuzzer/rand_util.rs b/src/libfuzzer/rand_util.rs
index 32197ba2195e..168c6d4dd61a 100644
--- a/src/libfuzzer/rand_util.rs
+++ b/src/libfuzzer/rand_util.rs
@@ -9,7 +9,7 @@
 // except according to those terms.
 
 use core::prelude::*;
-use std::rand;
+use extra::rand;
 
 // random uint less than n
 fn under(r : rand::rng, n : uint) -> uint {