diff --git a/pkgs/desktops/lomiri/development/cmake-extras/default.nix b/pkgs/desktops/lomiri/development/cmake-extras/default.nix
index e1eb805dfaec..ee5665cd668f 100644
--- a/pkgs/desktops/lomiri/development/cmake-extras/default.nix
+++ b/pkgs/desktops/lomiri/development/cmake-extras/default.nix
@@ -23,7 +23,7 @@ stdenvNoCC.mkDerivation {
 
     # This is in a function that reverse dependencies use to determine where to install their files to
     substituteInPlace src/QmlPlugins/QmlPluginsConfig.cmake \
-      --replace "\''${CMAKE_INSTALL_LIBDIR}/qt5/qml" "\''${CMAKE_INSTALL_BINDIR}/../${qtbase.qtQmlPrefix}"
+      --replace "\''${CMAKE_INSTALL_LIBDIR}/qt5/qml" "\''${CMAKE_INSTALL_PREFIX}/${qtbase.qtQmlPrefix}"
   '';
 
   strictDeps = true;