diff --git a/src/h3/frame.rs b/src/h3/frame.rs
index 87964c5..70afc88 100644
--- a/src/h3/frame.rs
+++ b/src/h3/frame.rs
@@ -35,7 +35,6 @@
 pub const PUSH_PROMISE_FRAME_TYPE_ID: u64 = 0x5;
 pub const GOAWAY_FRAME_TYPE_ID: u64 = 0x6;
 pub const MAX_PUSH_FRAME_TYPE_ID: u64 = 0xD;
-pub const DUPLICATE_PUSH_FRAME_TYPE_ID: u64 = 0xE;
 
 const SETTINGS_QPACK_MAX_TABLE_CAPACITY: u64 = 0x1;
 const SETTINGS_MAX_HEADER_LIST_SIZE: u64 = 0x6;
diff --git a/src/h3/stream.rs b/src/h3/stream.rs
index aa350d2..69f3da2 100644
--- a/src/h3/stream.rs
+++ b/src/h3/stream.rs
@@ -244,9 +244,6 @@
                     (frame::PUSH_PROMISE_FRAME_TYPE_ID, true) =>
                         return Err(Error::FrameUnexpected),
 
-                    (frame::DUPLICATE_PUSH_FRAME_TYPE_ID, true) =>
-                        return Err(Error::FrameUnexpected),
-
                     // All other frames are ignored after initialization.
                     (_, true) => (),
                 }
@@ -299,9 +296,6 @@
                     frame::MAX_PUSH_FRAME_TYPE_ID =>
                         return Err(Error::FrameUnexpected),
 
-                    frame::DUPLICATE_PUSH_FRAME_TYPE_ID =>
-                        return Err(Error::FrameUnexpected),
-
                     _ => (),
                 }
             },