diff --git a/include/linux/nubus.h b/include/linux/nubus.h
index a8696bb..b374052 100644
--- a/include/linux/nubus.h
+++ b/include/linux/nubus.h
@@ -80,7 +80,11 @@
 
 /* Generic NuBus interface functions, modelled after the PCI interface */
 void nubus_scan_bus(void);
+#ifdef CONFIG_PROC_FS
 extern void nubus_proc_init(void);
+#else
+static inline void nubus_proc_init(void) {}
+#endif
 int get_nubus_list(char *buf);
 int nubus_proc_attach_device(struct nubus_dev *dev);
 int nubus_proc_detach_device(struct nubus_dev *dev);