diff --git a/pkgs/applications/terminal-emulators/mlterm/default.nix b/pkgs/applications/terminal-emulators/mlterm/default.nix
index 056a24138441..2783795f3e53 100644
--- a/pkgs/applications/terminal-emulators/mlterm/default.nix
+++ b/pkgs/applications/terminal-emulators/mlterm/default.nix
@@ -39,6 +39,8 @@ stdenv.mkDerivation rec {
 
     fcitx
     ibus
+  ] ++ lib.optionals (stdenv.system != "aarch64-linux") [
+    # FIXME Currently broken on aarch64-linux
     uim
   ];
 
@@ -118,5 +120,6 @@ stdenv.mkDerivation rec {
     license = licenses.bsd3;
     maintainers = with maintainers; [ vrthra ramkromberg atemu ];
     platforms = with platforms; linux ++ darwin;
+    broken = stdenv.system == "aarch64-darwin"; # https://github.com/arakiken/mlterm/issues/51
   };
 }
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index c7b61d7112f4..9d2a4fd18dab 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -1869,10 +1869,10 @@ with pkgs;
 
   microcom = callPackage ../applications/terminal-emulators/microcom { };
 
-  mlterm = callPackage ../applications/terminal-emulators/mlterm {
+  mlterm = darwin.apple_sdk_11_0.callPackage ../applications/terminal-emulators/mlterm {
     libssh2 = null;
     openssl = null;
-    inherit (darwin.apple_sdk.frameworks) Cocoa;
+    inherit (darwin.apple_sdk_11_0.frameworks) Cocoa;
   };
 
   mrxvt = callPackage ../applications/terminal-emulators/mrxvt { };