diff --git a/annotation.csv b/annotation.csv
index 60eaeff..acf504e 100644
--- a/annotation.csv
+++ b/annotation.csv
@@ -165,6 +165,7 @@ hostile,Hostile,,Scenario Markers,10/15/18/20/25,,
 074,Damaged,,Terrain Markers,10/15/18/20/25,,
 076,Destroyed,,Terrain Markers,10/15/18/20/25,,
 193,Motorcycle,194,Terrain Markers,55,,
+158,Grenade,,Impact Markers,10/15/18/20/25/40,,
 160,Smoke Grenade,,Impact Markers,10/15/18/20/25/40,,
 164,Eclipse Grenade,,Impact Markers,10/15/18/20/25/40,,
 162,Nimbus Grenade,,Impact Markers,10/15/18/20/25/40,,