diff --git a/pygobject3.spec b/pygobject3.spec
index 547cf1a..06e73c2 100644
--- a/pygobject3.spec
+++ b/pygobject3.spec
@@ -106,7 +106,9 @@ library.
 %package        devel
 Summary:        Development files for embedding PyGObject introspection support
 Requires:       python-gobject%{?_isa} = %{version}-%{release}
+%if 0%{?with_python3}
 Requires:       python3-gobject%{?_isa} = %{version}-%{release}
+%endif
 Requires:       gobject-introspection-devel%{?_isa}
 
 %description    devel