diff --git a/pkgs/development/compilers/llvm/rocm/default.nix b/pkgs/development/compilers/llvm/rocm/default.nix
index 5f9dba0fc3cc..135fcd2d25ae 100644
--- a/pkgs/development/compilers/llvm/rocm/default.nix
+++ b/pkgs/development/compilers/llvm/rocm/default.nix
@@ -1,12 +1,12 @@
 { lib, fetchFromGitHub, callPackage, wrapCCWith }:
 
 let
-  version = "4.0.1";
+  version = "4.1.0";
   src = fetchFromGitHub {
     owner = "RadeonOpenCompute";
     repo = "llvm-project";
     rev = "rocm-${version}";
-    hash = "sha256-5mQ8tN7A045JCF7tHKgAZAbyVmXOd6Wf0CVUiPA80YM=";
+    hash = "sha256-DlId/dF5r0ULl2omYPCyu1Ic3XKlLL7ndiCA0RaF264=";
   };
 in rec {
   clang = wrapCCWith rec {
diff --git a/pkgs/development/compilers/llvm/rocm/lld.nix b/pkgs/development/compilers/llvm/rocm/lld.nix
index 2a05331f7a0f..a6e993bb203f 100644
--- a/pkgs/development/compilers/llvm/rocm/lld.nix
+++ b/pkgs/development/compilers/llvm/rocm/lld.nix
@@ -18,6 +18,8 @@ stdenv.mkDerivation rec {
 
   outputs = [ "out" "dev" ];
 
+  cmakeFlags = [ "-DLLVM_MAIN_SRC_DIR=${llvm.src}" ];
+
   postInstall = ''
     moveToOutput include "$dev"
     moveToOutput lib "$dev"