diff --git a/pkgs/desktops/lomiri/development/lomiri-api/default.nix b/pkgs/desktops/lomiri/development/lomiri-api/default.nix
index 9f699bbd715a..491b95d22a45 100644
--- a/pkgs/desktops/lomiri/development/lomiri-api/default.nix
+++ b/pkgs/desktops/lomiri/development/lomiri-api/default.nix
@@ -60,6 +60,7 @@ stdenv.mkDerivation (finalAttrs: {
     doxygen
     graphviz
     pkg-config
+    qtdeclarative
   ];
 
   buildInputs = [