diff --git a/src/libcore/cleanup.rs b/src/libcore/cleanup.rs
index 92cddf7718726ac240bc77de3dc43e1fe7e885fe..c8b96b9b23baa43808d959212ab392b37956d628 100644
--- a/src/libcore/cleanup.rs
+++ b/src/libcore/cleanup.rs
@@ -160,6 +160,7 @@ pub unsafe fn annihilate() {
 extern mod rustrt {
     #[legacy_exports];
     #[rust_stack]
-    /*priv*/ unsafe fn rust_get_task() -> *c_void;
+    // FIXME (#4386): Unable to make following method private.
+    /* priv */ unsafe fn rust_get_task() -> *c_void;
 }
 
diff --git a/src/libstd/future.rs b/src/libstd/future.rs
index 6a34c29b51662120f582182bd289ec6d1e80a79e..7d61326c02fa4931ec5c31318e0e60ffe806cf82 100644
--- a/src/libstd/future.rs
+++ b/src/libstd/future.rs
@@ -31,7 +31,7 @@
 
 #[doc = "The future type"]
 pub struct Future<A> {
-    /*priv*/ mut state: FutureState<A>,
+    priv mut state: FutureState<A>,
 }
 
 // FIXME(#2829) -- futures should not be copyable, because they close
diff --git a/src/libstd/sync.rs b/src/libstd/sync.rs
index a883062c4b9d5497082a21656de3884d93e4a867..ce7a8481ffda3bbe1bd13bb206315ffead5e96e3 100644
--- a/src/libstd/sync.rs
+++ b/src/libstd/sync.rs
@@ -449,9 +449,9 @@ struct RWlockInner {
  * unwinds.
  */
 struct RWlock {
-    /* priv */ order_lock:  Semaphore,
-    /* priv */ access_lock: Sem<~[mut Waitqueue]>,
-    /* priv */ state:       Exclusive<RWlockInner>
+    priv order_lock:  Semaphore,
+    priv access_lock: Sem<~[mut Waitqueue]>,
+    priv state:       Exclusive<RWlockInner>
 }
 
 /// Create a new rwlock, with one associated condvar.
@@ -683,7 +683,7 @@ fn RWlockReleaseDowngrade(lock: &r/RWlock) -> RWlockReleaseDowngrade/&r {
 }
 
 /// The "write permission" token used for rwlock.write_downgrade().
-pub struct RWlockWriteMode { /* priv */ lock: &RWlock }
+pub struct RWlockWriteMode { priv lock: &RWlock }
 impl RWlockWriteMode : Drop { fn finalize(&self) {} }
 /// The "read permission" token used for rwlock.write_downgrade().
 pub struct RWlockReadMode  { priv lock: &RWlock }