diff --git a/pkgs/development/libraries/ti-rpc/default.nix b/pkgs/development/libraries/ti-rpc/default.nix
index aa134d35104..99f0bb65441 100644
--- a/pkgs/development/libraries/ti-rpc/default.nix
+++ b/pkgs/development/libraries/ti-rpc/default.nix
@@ -8,14 +8,12 @@ stdenv.mkDerivation rec {
     sha256 = "0ppxl3k3nsz0qdakq844i2kj4fvh9h937lhx26bgmpmxq67sghw6";
   };
 
-  patches = stdenv.lib.optional stdenv.hostPlatform.isMusl
-    (fetchpatch {
-      url = "https://raw.githubusercontent.com/openembedded/openembedded-core/2be873301420ec6ca2c70d899b7c49a7e2b0954d/meta/recipes-extended/libtirpc/libtirpc/0001-replace-__bzero-with-memset-API.patch";
-      sha256 = "1jmbn0j2bnjp0j9z5vzz5xiwyv3kd28w5pixbqsy2lz6q8nii7cf";
-    });
-
   postPatch = ''
     sed '1i#include <stdint.h>' -i src/xdr_sizeof.c
+  '' + stdenv.lib.optionalString stdenv.hostPlatform.isMusl ''
+    substituteInPlace tirpc/rpc/types.h \
+      --replace '#if defined __APPLE_CC__ || defined __FreeBSD__' \
+                '#if defined __APPLE_CC__ || defined __FreeBSD__ || !defined __GLIBC__'
   '';
 
   nativeBuildInputs = [ autoreconfHook ];
diff --git a/pkgs/os-specific/linux/zfs/default.nix b/pkgs/os-specific/linux/zfs/default.nix
index aac1576261d..2535745e359 100644
--- a/pkgs/os-specific/linux/zfs/default.nix
+++ b/pkgs/os-specific/linux/zfs/default.nix
@@ -4,6 +4,7 @@
 
 # Userspace dependencies
 , zlib, libuuid, python, attr, openssl
+, libtirpc
 
 # Kernel dependencies
 , kernel ? null, spl ? null, splUnstable ? null, splLegacyCrypto ? null
@@ -42,6 +43,9 @@ let
 
       postPatch = optionalString buildKernel ''
         patchShebangs scripts
+      '' + optionalString stdenv.hostPlatform.isMusl ''
+        substituteInPlace config/user-libtirpc.m4 \
+          --replace /usr/include/tirpc ${libtirpc}/include/tirpc
       '';
 
       nativeBuildInputs = [ autoreconfHook nukeReferences ]
@@ -49,7 +53,8 @@ let
       buildInputs =
            optionals buildKernel [ spl ]
         ++ optionals buildUser [ zlib libuuid python attr ]
-        ++ optionals (buildUser && (isUnstable || isLegacyCrypto)) [ openssl ];
+        ++ optionals (buildUser && (isUnstable || isLegacyCrypto)) [ openssl ]
+        ++ optional stdenv.hostPlatform.isMusl [ libtirpc ];
 
       # for zdb to get the rpath to libgcc_s, needed for pthread_cancel to work
       NIX_CFLAGS_LINK = "-lgcc_s";