diff --git a/dbus-python.spec b/dbus-python.spec
index 4274654..be84b93 100644
--- a/dbus-python.spec
+++ b/dbus-python.spec
@@ -14,6 +14,7 @@ Patch0: 0001-Move-python-modules-to-architecture-specific-directo.patch
 Patch1: python39.patch
 
 BuildRequires: dbus-devel
+BuildRequires: glib2-devel
 # for %%check
 BuildRequires: dbus-x11
 BuildRequires: python3-gobject