diff --git a/nixos/modules/config/terminfo.nix b/nixos/modules/config/terminfo.nix
index bf8bc43d6bb5..78d4847092d5 100644
--- a/nixos/modules/config/terminfo.nix
+++ b/nixos/modules/config/terminfo.nix
@@ -24,25 +24,35 @@
 
   config = {
 
+    # This should not contain packages that are broken or can't build, since it
+    # will break this expression
+    #
+    # Currently broken packages:
+    # - contour
+    #
     # can be generated with:
     # lib.attrNames (lib.filterAttrs
     #  (_: drv: (builtins.tryEval (lib.isDerivation drv && drv ? terminfo)).value)
     #  pkgs)
-    environment.systemPackages = lib.mkIf config.environment.enableAllTerminfo (map (x: x.terminfo) (with pkgs.pkgsBuildBuild; [
-      alacritty
-      contour
-      foot
-      kitty
-      mtm
-      rio
-      rxvt-unicode-unwrapped
-      rxvt-unicode-unwrapped-emoji
-      st
-      termite
-      tmux
-      wezterm
-      yaft
-    ]));
+    environment.systemPackages = lib.mkIf config.environment.enableAllTerminfo (
+      map (x: x.terminfo) (
+        with pkgs.pkgsBuildBuild;
+        [
+          alacritty
+          foot
+          kitty
+          mtm
+          rio
+          rxvt-unicode-unwrapped
+          rxvt-unicode-unwrapped-emoji
+          st
+          termite
+          tmux
+          wezterm
+          yaft
+        ]
+      )
+    );
 
     environment.pathsToLink = [
       "/share/terminfo"
diff --git a/pkgs/applications/terminal-emulators/contour/default.nix b/pkgs/applications/terminal-emulators/contour/default.nix
index f01c47afdd36..78a1b7243cdc 100644
--- a/pkgs/applications/terminal-emulators/contour/default.nix
+++ b/pkgs/applications/terminal-emulators/contour/default.nix
@@ -99,5 +99,8 @@ stdenv.mkDerivation (final: {
     maintainers = with maintainers; [ moni ];
     platforms = platforms.unix;
     mainProgram = "contour";
+    # This was caused by boxed-cpp 1.4.2 -> 1.4.3
+    # More details in issue #345752
+    broken = true;
   };
 })