diff --git a/TrackedObject.cpp b/TrackedObject.cpp
index a7a4ccb..c1eeb1b 100644
--- a/TrackedObject.cpp
+++ b/TrackedObject.cpp
@@ -21,6 +21,8 @@ InterestingThing::InterestingThing(Sensor *sensor, Spherical position,
 bool InterestingThing::IsTheSameAs(InterestingThing *otherObj) {
   if (id != 0 && id == otherObj->id)
     return true;
+  if (type != otherObj->type)
+    return false;
   if (fabsf(position.distance - otherObj->position.distance) > equalityDistance)
     return false;
   if (fabsf(position.horizontalAngle - otherObj->position.horizontalAngle) >