diff --git a/CHANGELOG.md b/CHANGELOG.md
index af419117..58fd28f5 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -37,6 +37,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - SCH Print and Netlist: name collisions. When the default name used by KiCad
   belongs to an already existing file. (#244)
 - Install checker: fixed problems to detect iBoM installed as plugin. (#209)
+- Internal Netlist generation (i.e. iBoM with variants): problems withg
+  components that doesn't specify a library. (See #242)
 
 ### Changed
 - The order in which main sections are parsed is now fixed.
diff --git a/kibot/kicad/v5_sch.py b/kibot/kicad/v5_sch.py
index cf07edd1..8d5e900f 100644
--- a/kibot/kicad/v5_sch.py
+++ b/kibot/kicad/v5_sch.py
@@ -1949,7 +1949,11 @@ class Schematic(object):
                 continue
             libpart = SubElement(libparts, 'libpart')
             res = k.split(':')
-            if res:
+            cres = len(res)
+            if cres == 1:
+                libpart.set('lib', '')
+                libpart.set('part', res[0])
+            elif cres == 2:
                 libpart.set('lib', res[0])
                 libpart.set('part', res[1])
             if v.alias: