diff --git a/headers/private/kernel/boot/addr_range.h b/headers/private/kernel/boot/addr_range.h
index 2556cd0f5b..c048a309ae 100644
--- a/headers/private/kernel/boot/addr_range.h
+++ b/headers/private/kernel/boot/addr_range.h
@@ -1,6 +1,6 @@
-/* 
+/*
 ** Copyright 2004, Axel Dörfler, axeld@pinc-software.de. All rights reserved.
-** Distributed under the terms of the OpenBeOS License.
+** Distributed under the terms of the Haiku License.
 */
 #ifndef KERNEL_BOOT_ADDR_RANGE_H
 #define KERNEL_BOOT_ADDR_RANGE_H
@@ -14,4 +14,10 @@ typedef struct addr_range {
 	addr_t size;
 } addr_range;
 
+#ifdef __cplusplus
+extern "C"
+#endif
+status_t insert_address_range(addr_range *ranges, uint32 *_numRanges, uint32 maxRanges,
+	addr_t start, uint32 size);
+
 #endif	/* KERNEL_BOOT_ADDR_RANGE_H */