Fix warning.
Fix warning.

choeger/pygobject-cmake,jdahlin/pygobject,pexip/pygobject,jdahlin/pygobject,GNOME/pygobject,davibe/pygobject,pexip/pygobject,alexef/pygobject,GNOME/pygobject,thiblahute/pygobject,davidmalcolm/pygobject,jdahlin/pygobject,thiblahute/pygobject,choeger/pygobject-cmake,nzjrs/pygobject,davidmalcolm/pygobject,MathieuDuponchelle/pygobject,choeger/pygobject-cmake,davidmalcolm/pygobject,Distrotech/pygobject,Distrotech/pygobject,davibe/pygobject,nzjrs/pygobject,sfeltman/pygobject,MathieuDuponchelle/pygobject,thiblahute/pygobject,nzjrs/pygobject,Distrotech/pygobject,GNOME/pygobject,sfeltman/pygobject,MathieuDuponchelle/pygobject,alexef/pygobject,pexip/pygobject,davibe/pygobject,davibe/pygobject,sfeltman/pygobject,alexef/pygobject,Distrotech/pygobject