diff --git a/src/decode.rs b/src/decode.rs
index 54a1757..72c3c24 100644
--- a/src/decode.rs
+++ b/src/decode.rs
@@ -31,7 +31,6 @@ use ::dictionary::{kBrotliDictionary, kBrotliDictionaryOffsetsByLength,
                    kBrotliMinDictionaryWordLength};
 pub use huffman::{HuffmanCode, HuffmanTreeGroup};
 #[repr(C)]
-#[no_mangle]
 #[derive(Debug)]
 pub enum BrotliResult {
   ResultSuccess = 1,
diff --git a/src/ffi/interface.rs b/src/ffi/interface.rs
index af01bbf..eefccac 100644
--- a/src/ffi/interface.rs
+++ b/src/ffi/interface.rs
@@ -5,7 +5,6 @@ pub enum c_void{
     _Nothing = 0,
 }
 
-#[no_mangle]
 #[repr(C)]
 #[allow(dead_code)]
 pub enum BrotliDecoderParameter {
@@ -15,7 +14,6 @@ pub enum BrotliDecoderParameter {
 
 
 #[repr(C)]
-#[no_mangle]
 pub enum BrotliDecoderResult {
     BROTLI_DECODER_RESULT_ERROR = 0,
     BROTLI_DECODER_RESULT_SUCCESS = 1,
@@ -34,15 +32,12 @@ impl From<BrotliResult> for BrotliDecoderResult {
     }
   }
 }
-#[no_mangle]
 pub type brotli_alloc_func = Option<extern "C" fn(data: *mut c_void, size: usize) -> *mut c_void>;
 
-#[no_mangle]
 pub type brotli_free_func = Option<extern "C" fn(data: *mut c_void, ptr: *mut c_void) -> ()>;
 
 
 #[repr(C)]
-#[no_mangle]
 #[derive(Clone)]
 pub struct CAllocator {
     pub alloc_func: brotli_alloc_func,
diff --git a/src/ffi/mod.rs b/src/ffi/mod.rs
index 460439e..73ae362 100644
--- a/src/ffi/mod.rs
+++ b/src/ffi/mod.rs
@@ -1,6 +1,5 @@
 #![cfg(not(feature="safe"))]
 
-#[no_mangle]
 #[cfg(feature="std")]
 use std::{thread,panic, io, boxed, any, string};
 #[cfg(feature="std")]
@@ -39,7 +38,6 @@ type BrotliAdditionalErrorData = boxed::Box<any::Any + Send + 'static>;
 type BrotliAdditionalErrorData = ();
 
 #[repr(C)]
-#[no_mangle]
 pub struct BrotliDecoderState {
     pub custom_allocator: CAllocator,
     pub decompressor: ::BrotliState<SubclassableAllocator,
diff --git a/src/huffman/mod.rs b/src/huffman/mod.rs
index 4413d59..b9b7f8e 100644
--- a/src/huffman/mod.rs
+++ b/src/huffman/mod.rs
@@ -26,7 +26,6 @@ pub const BROTLI_HUFFMAN_MAX_TABLE_SIZE: u32 = 1080;
 pub const BROTLI_HUFFMAN_MAX_CODE_LENGTH_CODE_LENGTH: u32 = 5;
 
 #[repr(C)]
-#[no_mangle]
 #[derive(PartialEq, Copy, Clone, Debug)]
 pub struct HuffmanCode {
   pub value: u16, // symbol value or table offset
diff --git a/src/lib.rs b/src/lib.rs
index 1c06822..e740125 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -325,7 +325,6 @@ pub fn copy_from_to<R: io::Read, W: io::Write>(mut r: R, mut w: W) -> io::Result
   Ok(out_size)
 }
 
-#[no_mangle]
 #[repr(C)]
 pub struct BrotliDecoderReturnInfo {
     pub decoded_size: usize,
diff --git a/src/state.rs b/src/state.rs
index 98ad790..e4ac242 100644
--- a/src/state.rs
+++ b/src/state.rs
@@ -19,7 +19,6 @@ pub enum WhichTreeGroup {
 }
 #[repr(C)]
 #[derive(Clone,Copy, Debug)]
-#[no_mangle]
 pub enum BrotliDecoderErrorCode{
   BROTLI_DECODER_NO_ERROR = 0,
   /* Same as BrotliDecoderResult values */