diff --git a/pkgs/top-level/qt6-packages.nix b/pkgs/top-level/qt6-packages.nix
index e136faf2fb29..eb04beaef279 100644
--- a/pkgs/top-level/qt6-packages.nix
+++ b/pkgs/top-level/qt6-packages.nix
@@ -65,6 +65,7 @@ makeScopeWithSplicing' {
   };
   qcoro = callPackage ../development/libraries/qcoro { };
   qgpgme = callPackage ../development/libraries/gpgme { };
+  qmlbox2d = callPackage ../development/libraries/qmlbox2d { };
   packagekit-qt = callPackage ../tools/package-management/packagekit/qt.nix { };
 
   qt6ct = callPackage ../tools/misc/qt6ct { };