diff --git a/src/peep.h b/src/peep.h
index df866b2af7..fccecd3862 100644
--- a/src/peep.h
+++ b/src/peep.h
@@ -230,6 +230,13 @@ enum PEEP_FLAGS {
 	PEEP_FLAGS_ICE_CREAM = (1 << 25) // Unconfirmed
 };
 
+enum PEEP_NAUSEA_TOLERANCE{
+	PEEP_NAUSEA_TOLERANCE_NONE,
+	PEEP_NAUSEA_TOLERANCE_LOW,
+	PEEP_NAUSEA_TOLERANCE_AVERAGE,
+	PEEP_NAUSEA_TOLERANCE_HIGH
+};
+
 typedef struct {
 	uint8 type;
 	uint8 item;