diff --git a/kibom/netlist_reader.py b/kibom/netlist_reader.py
index 328c278..38ac041 100644
--- a/kibom/netlist_reader.py
+++ b/kibom/netlist_reader.py
@@ -12,6 +12,7 @@
 import sys
 import os.path
 import xml.sax as sax
+from natsort import natsorted
 
 from .component import Component, ComponentGroup
 from .preferences import BomPref
@@ -358,7 +359,7 @@ def groupComponents(self, components):
 
         # Sort the groups
         # First priority is the Type of component (e.g. R?, U?, L?)
-        groups = sorted(groups, key=lambda g: [g.components[0].getPrefix(), g.components[0].getValueSort()])
+        groups = natsorted(groups, key=lambda g: [g.components[0].getRef(), g.components[0].getValueSort()])
 
         return groups