diff --git a/doc/chips/SUMMARY b/doc/chips/SUMMARY
index 77b08a80..7eac3d2b 100644
--- a/doc/chips/SUMMARY
+++ b/doc/chips/SUMMARY
@@ -243,6 +243,7 @@ This may help identify a chip after doing a 'i2cdump [bus] [address]'.
 0x54	On Semi
 0x5CA3	Winbond (at 0x4F)
 0x90	ITE (at 0x58)
+0xA1    Philips
 0xA3	Winbond (at 0x4F)
 0xAC	Myson (at 0x58)
 0xC3	Asus (at 0x4F)