diff --git a/src/northbridge/amd/lx/northbridge.h b/src/northbridge/amd/lx/northbridge.h
index 1e0e6507fa..9a4ff29664 100644
--- a/src/northbridge/amd/lx/northbridge.h
+++ b/src/northbridge/amd/lx/northbridge.h
@@ -19,7 +19,6 @@
 #include <cpu/amd/lxdef.h>
 
 /* northbridge.c */
-unsigned int lx_scan_root_bus(device_t root, unsigned int max);
 int sizeram(void);
 
 /* northbridgeinit.c */