diff --git a/src/kOS/Suffixed/VesselTarget.cs b/src/kOS/Suffixed/VesselTarget.cs
index 1ab591fd4..d5adefc29 100644
--- a/src/kOS/Suffixed/VesselTarget.cs
+++ b/src/kOS/Suffixed/VesselTarget.cs
@@ -550,7 +550,7 @@ public override bool Equals(object obj)
 
         public override int GetHashCode()
         {
-            return Vessel.rootPart.flightID.GetHashCode();
+            return Vessel.id.GetHashCode();
         }
 
         public static bool operator ==(VesselTarget left, VesselTarget right)