diff --git a/mods/ra/rules/vehicles.yaml b/mods/ra/rules/vehicles.yaml
index c3d6028568..d35f345e27 100644
--- a/mods/ra/rules/vehicles.yaml
+++ b/mods/ra/rules/vehicles.yaml
@@ -537,7 +537,7 @@ MRJ:
 		Cost: 1000
 	Tooltip:
 		Name: Mobile Radar Jammer
-		Description: Jams enemy radar and deflects missiles.\n  Unarmed
+		Description: Jams nearby enemy radar domes\nand deflects incoming missiles.\n  Unarmed
 	Buildable:
 		Queue: Vehicle
 		BuildPaletteOrder: 150