diff --git a/include/w1.h b/include/w1.h
index b36e0f8..399177a 100644
--- a/include/w1.h
+++ b/include/w1.h
@@ -12,6 +12,7 @@
 
 #define W1_FAMILY_DS24B33	0x23
 #define W1_FAMILY_DS2431	0x2d
+#define W1_FAMILY_EEP_SANDBOX	0xfe
 
 struct w1_device {
 	u64	id;