diff --git a/kauth.spec b/kauth.spec
index 8316b60..2a29ecb 100644
--- a/kauth.spec
+++ b/kauth.spec
@@ -25,6 +25,7 @@ BuildRequires:  extra-cmake-modules >= 0.0.14
 BuildRequires:  fdupes
 BuildRequires:  kcoreaddons-devel >= %{_kf5_version}
 BuildRequires:  kf5-filesystem
+BuildRequires:  libpolkit-qt5-1-devel
 BuildRequires:  libqt5-linguist-devel >= 5.2.0
 BuildRequires:  pkgconfig(Qt5DBus) >= 5.2.0
 BuildRequires:  pkgconfig(Qt5Widgets) >= 5.2.0