--- babl/Makefile.am    2012-05-18 16:57:50.652946299 +0200
+++ babl/Makefile.am.new        2012-05-18 17:12:06.222715951 +0200
@@ -95,6 +95,7 @@
 if HAVE_INTROSPECTION
 Babl-$(BABL_API_VERSION).gir: $(G_IR_SCANNER) $(library_include_HEADERS) $(c_sources) $(srcdir)/Makefile.am
        $(INTROSPECTION_SCANNER) -v --namespace Babl --nsversion=$(BABL_API_VERSION) \
+            --identifier-prefix= --symbol-prefix=babl \
             --add-include-path=$(srcdir) --add-include-path=. \
             --library=libbabl-$(BABL_API_VERSION).la \
             --libtool="$(LIBTOOL)" \