diff --git a/src/codec/framed_read.rs b/src/codec/framed_read.rs
index 46ac723..90f2094 100644
--- a/src/codec/framed_read.rs
+++ b/src/codec/framed_read.rs
@@ -232,7 +232,6 @@ impl<T> FramedRead<T> {
     /// Updates the max frame size setting.
     ///
     /// Must be within 16,384 and 16,777,215.
-    #[cfg(feature = "unstable")]
     #[inline]
     pub fn set_max_frame_size(&mut self, val: usize) {
         assert!(DEFAULT_MAX_FRAME_SIZE as usize <= val && val <= MAX_MAX_FRAME_SIZE as usize);
diff --git a/src/codec/mod.rs b/src/codec/mod.rs
index 057ca94..6dc3267 100644
--- a/src/codec/mod.rs
+++ b/src/codec/mod.rs
@@ -65,7 +65,6 @@ impl<T, B> Codec<T, B> {
     /// words, if a frame is currently in process of being decoded with a frame
     /// size greater than `val` but less than the max frame size in effect
     /// before calling this function, then the frame will be allowed.
-    #[cfg(feature = "unstable")]
     #[inline]
     pub fn set_max_recv_frame_size(&mut self, val: usize) {
         self.inner.set_max_frame_size(val)