diff --git a/addons/web/static/src/legacy/js/views/list/list_renderer.js b/addons/web/static/src/legacy/js/views/list/list_renderer.js
index 6e9647e6ac7..f648e21880c 100644
--- a/addons/web/static/src/legacy/js/views/list/list_renderer.js
+++ b/addons/web/static/src/legacy/js/views/list/list_renderer.js
@@ -176,8 +176,11 @@ var ListRenderer = BasicRenderer.extend({
                 aggregateValue = Infinity;
             }
             _.each(data, function (d) {
-                count += 1;
                 var value = (d.type === 'record') ? d.data[attrs.name] : d.aggregateValues[attrs.name];
+                if (Number(value) !== value) {
+                    return;
+                }
+                count += 1;
                 if (func === 'avg') {
                     aggregateValue += value;
                 } else if (func === 'sum') {
@@ -191,10 +194,14 @@ var ListRenderer = BasicRenderer.extend({
             if (func === 'avg') {
                 aggregateValue = count ? aggregateValue / count : aggregateValue;
             }
-            column.aggregate = {
-                help: attrs[func],
-                value: aggregateValue,
-            };
+            if (count) {
+                column.aggregate = {
+                    help: attrs[func],
+                    value: aggregateValue,
+                };
+            } else {
+                delete column.aggregate;
+            }
         }
     },
     /**
diff --git a/addons/web/static/tests/legacy/views/list_tests.js b/addons/web/static/tests/legacy/views/list_tests.js
index f3c763a0ab2..1dfb107d356 100644
--- a/addons/web/static/tests/legacy/views/list_tests.js
+++ b/addons/web/static/tests/legacy/views/list_tests.js
@@ -2405,7 +2405,7 @@ QUnit.module('Views', {
 
         // Let's update the view to dislay NO records
         await list.update({domain: ['&', ['bar', '=', false], ['int_field', '>', 0]]});
-        assert.strictEqual(list.$('tfoot td:nth(2)').text(), "0", "total should have been recomputed to 0");
+        assert.strictEqual(list.$('tfoot td:nth(2)').text(), "", "No records, so no total.");
 
         list.destroy();
     });
@@ -2438,6 +2438,34 @@ QUnit.module('Views', {
         list.destroy();
     });
 
+    QUnit.test('hide aggregated value in grouped lists when no data provided by RPC call', async function(assert) {
+        assert.expect(1);
+
+        var list = await createView({
+            View: ListView,
+            model: 'foo',
+            data: this.data,
+            groupBy: ['bar'],
+            arch: '<tree editable="bottom"><field name="foo"/><field name="qux" widget="float_time" sum="Sum"/></tree>',
+            mockRPC: function (route, args) {
+                return this._super.apply(this, arguments).then(result => {
+                    // On PY-side, a read_group won't provide any aggregate value
+                    // if the field does not have a `group_operator` attribute.
+                    // (see 5691b126f06/odoo/models.py#L2521-L2528)
+                    // Here, since `qux` does not have such an attribute, we
+                    // remove the value provided by `_mockReadGroup`
+                    _.each(result.groups, function(group) {
+                      delete group.qux
+                    })
+                    return Promise.resolve(result)
+                });
+            },
+        });
+
+        assert.strictEqual(list.$('tfoot td:nth(2)').text(), "", "There isn't any aggregated value");
+        list.destroy();
+    })
+
     QUnit.test('aggregates are updated when a line is edited', async function (assert) {
         assert.expect(2);