diff --git a/pkgs/build-support/rust/hooks/default.nix b/pkgs/build-support/rust/hooks/default.nix
index 0aebc064e44c4..d2e58e475533f 100644
--- a/pkgs/build-support/rust/hooks/default.nix
+++ b/pkgs/build-support/rust/hooks/default.nix
@@ -16,10 +16,6 @@
 # from a stdenv platform (or a JSON file).
 , target ? stdenv.hostPlatform.rust.cargoShortTarget
 }:
-let
- inherit (python3) pythonOnBuildForHost;
- pythonInterpreter = pythonOnBuildForHost.interpreter;
-in
 {
   cargoBuildHook = callPackage ({ }:
     makeSetupHook {
@@ -91,7 +87,7 @@ in
       ];
       substitutions = {
         inherit (rust.envVars) rustTargetPlatformSpec setEnv;
-        pythonInterpreter = lib.versions.majorMinor pythonOnBuildForHost.version;
+        pythonExecutable = python3.executable;
       };
     } ./maturin-build-hook.sh) {};
 
diff --git a/pkgs/build-support/rust/hooks/maturin-build-hook.sh b/pkgs/build-support/rust/hooks/maturin-build-hook.sh
index 172104ee857a1..608857ed5b926 100644
--- a/pkgs/build-support/rust/hooks/maturin-build-hook.sh
+++ b/pkgs/build-support/rust/hooks/maturin-build-hook.sh
@@ -14,7 +14,7 @@ maturinBuildHook() {
 
     local flagsArray=(
         "--jobs=$NIX_BUILD_CORES"
-        "--interpreter=@pythonInterpreter@"
+        "--interpreter=@pythonExecutable@"
         "--offline"
         "--target" "@rustTargetPlatformSpec@"
         "--manylinux" "off"