diff --git a/tardis/montecarlo/montecarlo_numba/base.py b/tardis/montecarlo/montecarlo_numba/base.py
index 312fa5ecaac..00d03087003 100644
--- a/tardis/montecarlo/montecarlo_numba/base.py
+++ b/tardis/montecarlo/montecarlo_numba/base.py
@@ -375,7 +375,7 @@ def create_tracked_rpacket_df(track_dict_list, rpacket_trackers, iteration):
 
     Parameters
     ----------
-    rpacket_collections : list (contains `numba.jitclass` instances)
+    rpacket_trackers : list (contains `numba.jitclass` instances)
         A list of rpackets. Stores all the data for each interaction a particular rpacket undergoes as the simulation progresses.
     iteration : int
         Current Simulation 'Iteration' value
diff --git a/tardis/montecarlo/montecarlo_numba/numba_interface.py b/tardis/montecarlo/montecarlo_numba/numba_interface.py
index 23500fab8b9..5495fad08f1 100644
--- a/tardis/montecarlo/montecarlo_numba/numba_interface.py
+++ b/tardis/montecarlo/montecarlo_numba/numba_interface.py
@@ -305,7 +305,7 @@ def set_properties(
         self.idx += 1
 
 
-rpacket_collection_spec = [
+rpacket_tracker_spec = [
     ("length", int64),
     ("seed", int64[:]),
     ("index", int64[:]),
@@ -319,7 +319,7 @@ def set_properties(
 ]
 
 
-@jitclass(rpacket_collection_spec)
+@jitclass(rpacket_tracker_spec)
 class RPacketTracker(object):
     """
     Numba JITCLASS for storing the information for each interaction a RPacket instance undergoes.
diff --git a/tardis/montecarlo/montecarlo_numba/single_packet_loop.py b/tardis/montecarlo/montecarlo_numba/single_packet_loop.py
index 3cced140f37..3d847492e3f 100644
--- a/tardis/montecarlo/montecarlo_numba/single_packet_loop.py
+++ b/tardis/montecarlo/montecarlo_numba/single_packet_loop.py
@@ -41,7 +41,7 @@ def single_packet_loop(
     numba_plasma,
     estimators,
     vpacket_collection,
-    rpacket_collection,
+    tracked_rpacket,
 ):
     """
     Parameters
@@ -51,7 +51,7 @@ def single_packet_loop(
     numba_plasma : tardis.montecarlo.montecarlo_numba.numba_interface.NumbaPlasma
     estimators : tardis.montecarlo.montecarlo_numba.numba_interface.Estimators
     vpacket_collection : tardis.montecarlo.montecarlo_numba.numba_interface.VPacketCollection
-    rpacket_collection : tardis.montecarlo.montecarlo_numba.numba_interface.RPacketCollection
+    tracked_rpacket : tardis.montecarlo.montecarlo_numba.numba_interface.RPacketCollection
 
     Returns
     -------
@@ -73,7 +73,7 @@ def single_packet_loop(
     )
 
     if montecarlo_configuration.RPACKET_TRACKING:
-        rpacket_collection.track(r_packet)
+        tracked_rpacket.track(r_packet)
 
     while r_packet.status == PacketStatus.IN_PROCESS:
         distance, interaction_type, delta_shell = trace_packet(
@@ -117,7 +117,7 @@ def single_packet_loop(
             )
 
         if montecarlo_configuration.RPACKET_TRACKING:
-            rpacket_collection.track(r_packet)
+            tracked_rpacket.track(r_packet)
 
     # check where else initialize line ID happens!