diff --git a/src/northbridge/intel/haswell/haswell.h b/src/northbridge/intel/haswell/haswell.h
index bc2fc60..f67995d 100644
--- a/src/northbridge/intel/haswell/haswell.h
+++ b/src/northbridge/intel/haswell/haswell.h
@@ -221,6 +221,7 @@
 void haswell_early_initialization(int chipset_type);
 void haswell_late_initialization(void);
 void set_translation_table(int start, int end, u64 base, int inc);
+void haswell_unhide_peg(void);
 
 /* debugging functions */
 void print_pci_devices(void);