diff --git a/gtkglextmm/gdkglext/gdkmm/gl/Makefile.am b/gtkglextmm/gdkglext/gdkmm/gl/Makefile.am
index 8f3e091..79c70ec 100644
--- a/gtkglextmm/gdkglext/gdkmm/gl/Makefile.am
+++ b/gtkglextmm/gdkglext/gdkmm/gl/Makefile.am
@@ -7,8 +7,8 @@ sublib_topdir = gdkglext
 sublib_cflags = \
 	$(GDKGLEXTMM_DEP_CFLAGS)	\
 	-DGDKMM_GL_COMPILATION		\
-	-DG_DISABLE_DEPRECATED		\
 	-DGDK_DISABLE_DEPRECATED	\
+	-DGLIBMM_DISABLE_DEPRECATED	\
 	-DGDK_PIXBUF_DISABLE_DEPRECATED
 
 files_extra_h = \
diff --git a/gtkglextmm/gdkglext/gdkmm/gl/Makefile.in b/gtkglextmm/gdkglext/gdkmm/gl/Makefile.in
index 5801999..8116c90 100644
--- a/gtkglextmm/gdkglext/gdkmm/gl/Makefile.in
+++ b/gtkglextmm/gdkglext/gdkmm/gl/Makefile.in
@@ -210,8 +210,8 @@ sublib_topdir = gdkglext
 sublib_cflags = \
 	$(GDKGLEXTMM_DEP_CFLAGS)	\
 	-DGDKMM_GL_COMPILATION		\
-	-DG_DISABLE_DEPRECATED		\
 	-DGDK_DISABLE_DEPRECATED	\
+	-DGLIBMM_DISABLE_DEPRECATED	\
 	-DGDK_PIXBUF_DISABLE_DEPRECATED