diff --git a/pkgs/development/compilers/llvm/4/libc++/default.nix b/pkgs/development/compilers/llvm/4/libc++/default.nix
index 718abc420a9..6ce9c0d4792 100644
--- a/pkgs/development/compilers/llvm/4/libc++/default.nix
+++ b/pkgs/development/compilers/llvm/4/libc++/default.nix
@@ -17,7 +17,7 @@ stdenv.mkDerivation rec {
     ./xlocale-glibc-2.26.patch
   ] ++ stdenv.lib.optionals stdenv.hostPlatform.isMusl [
     ../../libcxx-0001-musl-hacks.patch
-    ./max_align_t.patch
+    ../../libcxx-max_align_t.patch
   ];
 
   prePatch = ''
diff --git a/pkgs/development/compilers/llvm/4/libc++abi.nix b/pkgs/development/compilers/llvm/4/libc++abi.nix
index 41eb40e124e..5eeec395b97 100644
--- a/pkgs/development/compilers/llvm/4/libc++abi.nix
+++ b/pkgs/development/compilers/llvm/4/libc++abi.nix
@@ -16,7 +16,7 @@ stdenv.mkDerivation {
     export TRIPLE=x86_64-apple-darwin
   '' + stdenv.lib.optionalString stdenv.hostPlatform.isMusl ''
     patch -p1 -d $(ls -d libcxx-*) -i ${../libcxx-0001-musl-hacks.patch}
-    patch -p1 -d $(ls -d libcxx-*) -i ${./libc++/max_align_t.patch}
+    patch -p1 -d $(ls -d libcxx-*) -i ${../libcxx-max_align_t.patch}
   '';
 
   installPhase = if stdenv.isDarwin
diff --git a/pkgs/development/compilers/llvm/4/libc++/max_align_t.patch b/pkgs/development/compilers/llvm/libcxx-max_align_t.patch
similarity index 100%
rename from pkgs/development/compilers/llvm/4/libc++/max_align_t.patch
rename to pkgs/development/compilers/llvm/libcxx-max_align_t.patch