diff --git a/gtk3.spec b/gtk3.spec
index 3d63b3e..8cb1d4f 100644
--- a/gtk3.spec
+++ b/gtk3.spec
@@ -28,6 +28,7 @@ Patch2: 0001-New-tooltip-style.patch
 BuildRequires: atk-devel >= %{atk_version}
 BuildRequires: glib2-devel >= %{glib2_version}
 BuildRequires: cairo-devel >= %{cairo_version}
+BuildRequires: cairo-gobject-devel >= %{cairo_version}
 BuildRequires: pango-devel >= %{pango_version}
 BuildRequires: gdk-pixbuf2-devel
 BuildRequires: libXi-devel