diff --git a/addons/mrp/report/mrp_report_bom_structure.py b/addons/mrp/report/mrp_report_bom_structure.py
index f2aec352530..22fcd576eba 100644
--- a/addons/mrp/report/mrp_report_bom_structure.py
+++ b/addons/mrp/report/mrp_report_bom_structure.py
@@ -5,6 +5,7 @@ import json
 from odoo import api, fields, models, _
 from odoo.tools import float_compare, float_round, format_date, float_is_zero
 from datetime import timedelta
+from collections import defaultdict
 
 class ReportBomStructure(models.AbstractModel):
     _name = 'report.mrp.report_bom_structure'
@@ -23,11 +24,14 @@ class ReportBomStructure(models.AbstractModel):
     @api.model
     def _compute_current_production_capacity(self, bom_data):
         # Get the maximum amount producible product of the selected bom given each component's stock levels.
-        stockable_components = filter(
-            lambda c: c['product'].detailed_type == 'product'
-            and not float_is_zero(c['base_bom_line_qty'], precision_digits=c['uom'].rounding),
-            bom_data.get('components', []))
-        producibles = [float_round(comp['quantity_available'] / comp['base_bom_line_qty'], precision_digits=0, rounding_method='DOWN') for comp in stockable_components]
+        components_qty_to_produce = defaultdict(lambda: 0)
+        components_qty_available = {}
+        for comp in bom_data.get('components', []):
+            if comp['product'].type != 'product' or float_is_zero(comp['base_bom_line_qty'], precision_digits=comp['uom'].rounding):
+                continue
+            components_qty_to_produce[comp['product_id']] += comp['base_bom_line_qty']
+            components_qty_available[comp['product_id']] = comp['quantity_available']
+        producibles = [float_round(components_qty_available[p_id] / qty, precision_digits=0, rounding_method='DOWN') for p_id, qty in components_qty_to_produce.items()]
         return min(producibles) * bom_data['bom']['product_qty'] if producibles else 0
 
     @api.model
diff --git a/addons/mrp/tests/test_bom.py b/addons/mrp/tests/test_bom.py
index c93ab780c9a..d9edf2f9876 100644
--- a/addons/mrp/tests/test_bom.py
+++ b/addons/mrp/tests/test_bom.py
@@ -1018,6 +1018,28 @@ class TestBoM(TestMrpCommon):
         # So with 4 of the second product available, we can produce 4 items
         self.assertEqual(report_values["lines"]["producible_qty"], 4)
 
+    def test_bom_report_capacity_with_duplicate_components(self):
+        location = self.env.ref('stock.stock_location_stock')
+        self.env['stock.quant']._update_available_quantity(self.product_2, location, 2.0)
+        bom = self.env['mrp.bom'].create({
+            'product_tmpl_id': self.product_3.product_tmpl_id.id,
+            'product_qty': 1,
+            'bom_line_ids': [
+                Command.create({
+                    'product_id': self.product_2.id,
+                    'product_qty': 2,
+                }),
+                Command.create({
+                    'product_id': self.product_2.id,
+                    'product_qty': 2,
+                })
+            ]
+        })
+
+        report_values = self.env['report.mrp.report_bom_structure']._get_report_data(bom_id=bom.id)
+        # Total quantity of components is 4, so shouldn't be able to produce a single one.
+        self.assertEqual(report_values['lines']['producible_qty'], 0)
+
     def test_validate_no_bom_line_with_same_product(self):
         """
         Cannot set a BOM line on a BOM with the same product as the BOM itself