diff --git a/OpenRA.Mods.RA/Activities/Infiltrate.cs b/OpenRA.Mods.RA/Activities/Infiltrate.cs
index 045969ef02..a5519fecdb 100644
--- a/OpenRA.Mods.RA/Activities/Infiltrate.cs
+++ b/OpenRA.Mods.RA/Activities/Infiltrate.cs
@@ -32,6 +32,8 @@ namespace OpenRA.Mods.RA.Activities
 
 			self.Destroy();
 
+			Sound.PlayToPlayer(self.Owner, "bldginf1.aud");
+
 			return this;
 		}
 	}