diff --git a/extensions/source/plugin/inc/plugin/unx/plugcon.hxx b/extensions/source/plugin/inc/plugin/unx/plugcon.hxx
index cc27cc219578..a0528bf23f4e 100644
--- a/extensions/source/plugin/inc/plugin/unx/plugcon.hxx
+++ b/extensions/source/plugin/inc/plugin/unx/plugcon.hxx
@@ -95,6 +95,7 @@ extern "C" {
 #include <config_vclplug.h>
 
 #if ENABLE_GTK
+#define GLIB_DISABLE_DEPRECATION_WARNINGS
 #include <gtk/gtk.h>
 #include <gdk/gdkx.h>
 #else
diff --git a/extensions/source/plugin/unx/npwrap.cxx b/extensions/source/plugin/unx/npwrap.cxx
index 3f449ac90296..97b3f3f1ca3e 100644
--- a/extensions/source/plugin/unx/npwrap.cxx
+++ b/extensions/source/plugin/unx/npwrap.cxx
@@ -38,7 +38,6 @@
 #include <fcntl.h>
 #include <signal.h>
 
-#define GLIB_DISABLE_DEPRECATION_WARNINGS
 #include <plugin/unx/plugcon.hxx>
 
 #include <osl/file.h>