diff --git a/pkgs/development/libraries/qt-6/modules/qtbase.nix b/pkgs/development/libraries/qt-6/modules/qtbase.nix
index 0a16f725c477..0d6f9dfe9839 100644
--- a/pkgs/development/libraries/qt-6/modules/qtbase.nix
+++ b/pkgs/development/libraries/qt-6/modules/qtbase.nix
@@ -263,6 +263,9 @@ stdenv.mkDerivation rec {
     moveToOutput      "mkspecs/modules" "$dev"
     fixQtModulePaths  "$dev/mkspecs/modules"
     fixQtBuiltinPaths "$out" '*.pr?'
+
+    # FIXME: not sure why this isn't added automatically?
+    patchelf --add-rpath "${libmysqlclient}/lib/mariadb" $out/${qtPluginPrefix}/sqldrivers/libqsqlmysql.so
   '';
 
   dontStrip = debugSymbols;