diff --git a/mozilla/xpcom/base/Makefile.in b/mozilla/xpcom/base/Makefile.in
index 96383688a51..cb19c4a8534 100644
--- a/mozilla/xpcom/base/Makefile.in
+++ b/mozilla/xpcom/base/Makefile.in
@@ -142,11 +142,11 @@ FORCE_STATIC_LIB = 1
 # Force use of PIC
 FORCE_USE_PIC	= 1
 
-include $(topsrcdir)/config/rules.mk
-
-DEFINES		+= -D_IMPL_NS_COM
-
 ifneq (,$(filter gtk2,$(MOZ_WIDGET_TOOLKIT)))
 CXXFLAGS         += $(MOZ_GTK2_CFLAGS)
 EXTRA_DSO_LDOPTS += $(MOZ_GTK2_LIBS)
 endif
+
+include $(topsrcdir)/config/rules.mk
+
+DEFINES		+= -D_IMPL_NS_COM