6 files changed, 6 insertions, 0 deletions
diff --git a/src/libstd/num/f32.rs b/src/libstd/num/f32.rs
index bbf1458da21..2b2ffb9f4e2 100644
--- a/src/libstd/num/f32.rs
+++ b/src/libstd/num/f32.rs
@@ -10,6 +10,7 @@
 
 //! Operations and constants for 32-bits floats (`f32` type)
 
+#![experimental]
 #![allow(missing_doc)]
 #![allow(unsigned_negate)]
 #![doc(primitive = "f32")]
diff --git a/src/libstd/num/f64.rs b/src/libstd/num/f64.rs
index cfa8534160b..e156d2ce553 100644
--- a/src/libstd/num/f64.rs
+++ b/src/libstd/num/f64.rs
@@ -10,6 +10,7 @@
 
 //! Operations and constants for 64-bits floats (`f64` type)
 
+#![experimental]
 #![allow(missing_doc)]
 #![doc(primitive = "f64")]
 
diff --git a/src/libstd/num/float_macros.rs b/src/libstd/num/float_macros.rs
index 3e403219a4f..519de85edde 100644
--- a/src/libstd/num/float_macros.rs
+++ b/src/libstd/num/float_macros.rs
@@ -8,6 +8,7 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
+#![experimental]
 #![macro_escape]
 #![doc(hidden)]
 
diff --git a/src/libstd/num/int_macros.rs b/src/libstd/num/int_macros.rs
index 9b3c9d29cc7..a4200b55a59 100644
--- a/src/libstd/num/int_macros.rs
+++ b/src/libstd/num/int_macros.rs
@@ -8,6 +8,7 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
+#![experimental]
 #![macro_escape]
 #![doc(hidden)]
 
diff --git a/src/libstd/num/mod.rs b/src/libstd/num/mod.rs
index 65056652e3f..27ee1e3ce3b 100644
--- a/src/libstd/num/mod.rs
+++ b/src/libstd/num/mod.rs
@@ -13,6 +13,7 @@
 //! These are implemented for the primitive numeric types in `std::{u8, u16,
 //! u32, u64, uint, i8, i16, i32, i64, int, f32, f64}`.
 
+#![experimental]
 #![allow(missing_doc)]
 
 use option::Option;
diff --git a/src/libstd/num/uint_macros.rs b/src/libstd/num/uint_macros.rs
index 19e45b292fb..7f2efe034a2 100644
--- a/src/libstd/num/uint_macros.rs
+++ b/src/libstd/num/uint_macros.rs
@@ -8,6 +8,7 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
+#![experimental]
 #![macro_escape]
 #![doc(hidden)]
 #![allow(unsigned_negate)]