diff --git a/src/liballoc/tests/arc.rs b/src/liballoc/tests/arc.rs
index 34384cfcba9..c02ba267056 100644
--- a/src/liballoc/tests/arc.rs
+++ b/src/liballoc/tests/arc.rs
@@ -50,7 +50,7 @@ fn trait_object() {
 
 #[test]
 fn float_nan_ne() {
-    let x = Arc::new(std::f32::NAN);
+    let x = Arc::new(f32::NAN);
     assert!(x != x);
     assert!(!(x == x));
 }
diff --git a/src/liballoc/tests/rc.rs b/src/liballoc/tests/rc.rs
index 884856cd1b4..501b4f0f816 100644
--- a/src/liballoc/tests/rc.rs
+++ b/src/liballoc/tests/rc.rs
@@ -50,7 +50,7 @@ fn trait_object() {
 
 #[test]
 fn float_nan_ne() {
-    let x = Rc::new(std::f32::NAN);
+    let x = Rc::new(f32::NAN);
     assert!(x != x);
     assert!(!(x == x));
 }