diff --git a/gio/gnetworking.h.in b/gio/gnetworking.h.in
index 3561239f8..3dddd9024 100644
--- a/gio/gnetworking.h.in
+++ b/gio/gnetworking.h.in
@@ -49,6 +49,8 @@
 #include <arpa/nameser.h>
 @NAMESER_COMPAT_INCLUDE@
 
+#ifndef __GI_SCANNER__
+
 #ifndef T_SRV
 #define T_SRV 33
 #endif
@@ -71,6 +73,8 @@
 #endif
 #endif
 
+#endif  /* !__GI_SCANNER__ */
+
 G_BEGIN_DECLS
 
 GIO_AVAILABLE_IN_2_36