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;
diff --git a/pkgs/kde/gear/akonadi/default.nix b/pkgs/kde/gear/akonadi/default.nix
index 15d1436e9cb5..64966c4fad58 100644
--- a/pkgs/kde/gear/akonadi/default.nix
+++ b/pkgs/kde/gear/akonadi/default.nix
@@ -22,4 +22,10 @@ mkKdeDerivation {
 
   extraNativeBuildInputs = [qttools shared-mime-info];
   extraBuildInputs = [kaccounts-integration accounts-qt xz mariadb];
+
+  # Hardcoded as a QString, which is UTF-16 so Nix can't pick it up automatically
+  postFixup = ''
+    mkdir -p $out/nix-support
+    echo "${mariadb}" > $out/nix-support/depends
+  '';
 }