diff --git a/pkgs/games/cataclysm-dda/default.nix b/pkgs/games/cataclysm-dda/default.nix
index b37e87c74f5..be6f3265430 100644
--- a/pkgs/games/cataclysm-dda/default.nix
+++ b/pkgs/games/cataclysm-dda/default.nix
@@ -31,6 +31,7 @@ stdenv.mkDerivation rec {
 
   makeFlags = [
     "PREFIX=$(out) LUA=1 TILES=1 SOUND=1 RELEASE=1 USE_HOME_DIR=1"
+    # "LANGUAGES=all"  # vanilla C:DDA installs all translations even without this flag!
   ] ++ stdenv.lib.optionals stdenv.isDarwin [
     "NATIVE=osx CLANG=1"
     "OSX_MIN=10.6"  # SDL for macOS only supports deploying on 10.6 and above
diff --git a/pkgs/games/cataclysm-dda/git.nix b/pkgs/games/cataclysm-dda/git.nix
index f08b4a9f3b1..3d8ec7d6844 100644
--- a/pkgs/games/cataclysm-dda/git.nix
+++ b/pkgs/games/cataclysm-dda/git.nix
@@ -30,6 +30,7 @@ stdenv.mkDerivation rec {
 
   makeFlags = [
     "PREFIX=$(out) LUA=1 TILES=1 SOUND=1 RELEASE=1 USE_HOME_DIR=1"
+    "LANGUAGES=all"
   ] ++ stdenv.lib.optionals stdenv.isDarwin [
     "NATIVE=osx CLANG=1"
   ];