diff --git a/CHANGELOG.md b/CHANGELOG.md
index 930a3506..9e933af7 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -29,6 +29,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
   These fields are now part of the default `group_fields`. (#79)
 - JLCPCB example, to match current recommendations
   (g200kg/kicad-gerberzipper#11)
+- Internal BoM: the field used for variants doesn't produce conflicts. (#100)
 
 ### Fixed
 - Position files now defaults to use the auxiliar origin as KiCad.
diff --git a/README.md b/README.md
index 2f37b675..160e68a8 100644
--- a/README.md
+++ b/README.md
@@ -720,7 +720,7 @@ Next time you need this list just use an alias, like this:
         - `merge_both_blank`: [boolean=true] When creating groups two components with empty/missing field will be interpreted as with the same value.
         - `no_conflict`: [list(string)] List of fields where we tolerate conflicts.
                          Use it to avoid undesired warnings.
-                         By default the field indicated in `fit_field` and the field `part` are excluded.
+                         By default the field indicated in `fit_field`, the field used for variants and the field `part` are excluded.
         - `no_distributors`: [string|list(string)] Exclude this distributors list. They are removed after computing `distributors`.
         - `normalize_locale`: [boolean=false] When normalizing values use the locale decimal point.
         - `normalize_values`: [boolean=false] Try to normalize the R, L and C values, producing uniform units and prefixes.
diff --git a/docs/samples/generic_plot.kibot.yaml b/docs/samples/generic_plot.kibot.yaml
index b406b66d..7881ba1a 100644
--- a/docs/samples/generic_plot.kibot.yaml
+++ b/docs/samples/generic_plot.kibot.yaml
@@ -169,7 +169,7 @@ outputs:
       merge_both_blank: true
       # [list(string)] List of fields where we tolerate conflicts.
       # Use it to avoid undesired warnings.
-      # By default the field indicated in `fit_field` and the field `part` are excluded
+      # By default the field indicated in `fit_field`, the field used for variants and the field `part` are excluded
       no_conflict: ['Config', 'Part']
       # [string|list(string)] Exclude this distributors list. They are removed after computing `distributors`
       no_distributors:
diff --git a/kibot/out_bom.py b/kibot/out_bom.py
index 119b95c2..7425778e 100644
--- a/kibot/out_bom.py
+++ b/kibot/out_bom.py
@@ -295,7 +295,7 @@ class BoMOptions(BaseOptions):
             self.no_conflict = NoConflict
             """ [list(string)] List of fields where we tolerate conflicts.
                 Use it to avoid undesired warnings.
-                By default the field indicated in `fit_field` and the field `part` are excluded """
+                By default the field indicated in `fit_field`, the field used for variants and the field `part` are excluded """
             self.aggregate = Aggregate
             """ [list(dict)] Add components from other projects """
             self.ref_id = ''
@@ -459,6 +459,9 @@ class BoMOptions(BaseOptions):
         if isinstance(self.no_conflict, type):
             no_conflict.add(self.fit_field)
             no_conflict.add('part')
+            var_field = self.variant.get_variant_field()
+            if var_field is not None:
+                no_conflict.add(var_field)
         else:
             for field in self.no_conflict:
                 no_conflict.add(field.lower())
diff --git a/kibot/var_base.py b/kibot/var_base.py
index baabad04..3e27d475 100644
--- a/kibot/var_base.py
+++ b/kibot/var_base.py
@@ -39,6 +39,10 @@ class BaseVariant(RegVariant):
             """ [string|list(string)=''] Name of the filter to mark components as 'Do Not Change'.
                 Use '_kibom_dnc' for the default KiBoM behavior """
 
+    def get_variant_field(self):
+        ''' Returns the name of the field used to determine if the component belongs to teh variant '''
+        return None
+
     def filter(self, comps):
         # Apply all the filters
         comps = apply_pre_transform(comps, self.pre_transform)
diff --git a/kibot/var_ibom.py b/kibot/var_ibom.py
index 8f98f4ba..753ebb08 100644
--- a/kibot/var_ibom.py
+++ b/kibot/var_ibom.py
@@ -32,6 +32,10 @@ class IBoM(BaseVariant):  # noqa: F821
             self.variants_whitelist = Optionable
             """ [string|list(string)=''] List of board variants to include in the BOM """
 
+    def get_variant_field(self):
+        ''' Returns the name of the field used to determine if the component belongs to teh variant '''
+        return self.variant_field
+
     def config(self, parent):
         super().config(parent)
         self.pre_transform = BaseFilter.solve_filter(self.pre_transform, 'pre_transform', is_transform=True)
diff --git a/kibot/var_kibom.py b/kibot/var_kibom.py
index 13716d2d..4c7e0618 100644
--- a/kibot/var_kibom.py
+++ b/kibot/var_kibom.py
@@ -33,6 +33,10 @@ class KiBoM(BaseVariant):  # noqa: F821
             self.variant = Optionable
             """ [string|list(string)=''] Board variant(s) """
 
+    def get_variant_field(self):
+        ''' Returns the name of the field used to determine if the component belongs to teh variant '''
+        return self.config_field
+
     def set_def_filters(self, exclude_filter, dnf_filter, dnc_filter):
         """ Filters delegated to the variant """
         self._def_exclude_filter = exclude_filter
diff --git a/kibot/var_kicost.py b/kibot/var_kicost.py
index 190c290c..1fd7c003 100644
--- a/kibot/var_kicost.py
+++ b/kibot/var_kicost.py
@@ -36,6 +36,10 @@ class KiCost(BaseVariant):  # noqa: F821
             """ Valid separators for variants in the variant field.
                 Each character is a valid separator """
 
+    def get_variant_field(self):
+        ''' Returns the name of the field used to determine if the component belongs to teh variant '''
+        return self.variant_field
+
     def config(self, parent):
         super().config(parent)
         self.pre_transform = BaseFilter.solve_filter(self.pre_transform, 'pre_transform',