diff --git a/pkgs/by-name/li/libfishsound/fix-callbacks.patch b/pkgs/by-name/li/libfishsound/fix-callbacks.patch
deleted file mode 100644
index 992efcf23ec8..000000000000
--- a/pkgs/by-name/li/libfishsound/fix-callbacks.patch
+++ /dev/null
@@ -1,20 +0,0 @@
---- a/src/libfishsound/flac.c
-+++ b/src/libfishsound/flac.c
-@@ -106,7 +106,7 @@ fs_flac_command (FishSound * fsound, int command, void * data, int datasize)
- #if FS_DECODE
- static FLAC__StreamDecoderReadStatus
- fs_flac_read_callback(const FLAC__StreamDecoder *decoder,
--                      FLAC__byte buffer[], unsigned int *bytes,
-+                      FLAC__byte buffer[], size_t *bytes,
-                       void *client_data)
- {
-   FishSound* fsound = (FishSound*)client_data;
-@@ -346,7 +346,7 @@ dec_err:
- #if FS_ENCODE
- static FLAC__StreamEncoderWriteStatus
- fs_flac_enc_write_callback(const FLAC__StreamEncoder *encoder,
--                           const FLAC__byte buffer[], unsigned bytes,
-+                           const FLAC__byte buffer[], size_t bytes,
-                            unsigned samples, unsigned current_frame,
-                            void *client_data)
- {
diff --git a/pkgs/by-name/li/libfishsound/package.nix b/pkgs/by-name/li/libfishsound/package.nix
index 63b0838b4b01..0c5ea9c4c023 100644
--- a/pkgs/by-name/li/libfishsound/package.nix
+++ b/pkgs/by-name/li/libfishsound/package.nix
@@ -17,10 +17,6 @@ stdenv.mkDerivation rec {
     sha256 = "1iz7mn6hw2wg8ljaw74f4g2zdj68ib88x4vjxxg3gjgc5z75f2rf";
   };
 
-  patches = [
-    ./fix-callbacks.patch
-  ];
-
   propagatedBuildInputs = [
     libvorbis
     speex