diff --git a/pkgs/development/compilers/mlton/20241230-binary.nix b/pkgs/development/compilers/mlton/20241230-binary.nix
index f73d1dfcbc75..542f05066db4 100644
--- a/pkgs/development/compilers/mlton/20241230-binary.nix
+++ b/pkgs/development/compilers/mlton/20241230-binary.nix
@@ -19,6 +19,11 @@ stdenv.mkDerivation rec {
         url = "https://github.com/MLton/mlton/releases/download/on-${version}-release/${pname}-${version}-1.amd64-linux.ubuntu-24.04_glibc2.39.tgz";
         sha256 = "sha256-ldXnjHcWGu77LP9WL6vTC6FngzhxPFAUflAA+bpIFZM=";
       })
+    else if stdenv.hostPlatform.system == "aarch64-linux" then
+      (fetchurl {
+        url = "https://github.com/MLton/mlton/releases/download/on-${version}-release/${pname}-${version}-1.arm64-linux.ubuntu-24.04-arm_glibc2.39.tgz";
+        sha256 = "sha256-rn65t253SfUShAM3kXiLQJHT7JS7EO3fAPB23LWIwfc=";
+      })
     else if stdenv.hostPlatform.system == "x86_64-darwin" then
       (fetchurl {
         url = "https://github.com/MLton/mlton/releases/download/on-${version}-release/${pname}-${version}-1.amd64-darwin.macos-13_gmp-static.tgz";
diff --git a/pkgs/development/compilers/mlton/meta.nix b/pkgs/development/compilers/mlton/meta.nix
index a967c741f819..e65714f12a9b 100644
--- a/pkgs/development/compilers/mlton/meta.nix
+++ b/pkgs/development/compilers/mlton/meta.nix
@@ -17,6 +17,7 @@
   platforms = [
     "i686-linux"
     "x86_64-linux"
+    "aarch64-linux"
     "x86_64-darwin"
     "aarch64-darwin"
   ];