diff --git a/packages/elements/src/component-factory-strategy.ts b/packages/elements/src/component-factory-strategy.ts
index 6480045dae..fafe335b84 100644
--- a/packages/elements/src/component-factory-strategy.ts
+++ b/packages/elements/src/component-factory-strategy.ts
@@ -133,7 +133,11 @@ export class ComponentNgElementStrategy implements NgElementStrategy {
       return;
     }
 
-    if (strictEquals(value, this.getInputValue(property))) {
+    // Ignore the value if it is strictly equal to the current value, except if it is `undefined`
+    // and this is the first change to the value (because an explicit `undefined` _is_ strictly
+    // equal to not having a value set at all, but we still need to record this as a change).
+    if (strictEquals(value, this.getInputValue(property)) &&
+        !((value === undefined) && this.unchangedInputs.has(property))) {
       return;
     }
 
diff --git a/packages/elements/test/component-factory-strategy_spec.ts b/packages/elements/test/component-factory-strategy_spec.ts
index 4a99800a6b..7887b55abf 100644
--- a/packages/elements/test/component-factory-strategy_spec.ts
+++ b/packages/elements/test/component-factory-strategy_spec.ts
@@ -94,6 +94,7 @@ describe('ComponentFactoryNgElementStrategy', () => {
     it('should call ngOnChanges with the change', () => {
       expectSimpleChanges(componentRef.instance.simpleChanges[0], {
         fooFoo: new SimpleChange(undefined, 'fooFoo-1', true),
+        falsyUndefined: new SimpleChange(undefined, undefined, true),
         falsyNull: new SimpleChange(undefined, null, true),
         falsyEmpty: new SimpleChange(undefined, '', true),
         falsyFalse: new SimpleChange(undefined, false, true),
@@ -104,11 +105,13 @@ describe('ComponentFactoryNgElementStrategy', () => {
     it('should call ngOnChanges with proper firstChange value', fakeAsync(() => {
          strategy.setInputValue('fooFoo', 'fooFoo-2');
          strategy.setInputValue('barBar', 'barBar-1');
+         strategy.setInputValue('falsyUndefined', 'notanymore');
          tick(16);  // scheduler waits 16ms if RAF is unavailable
          (strategy as any).detectChanges();
          expectSimpleChanges(componentRef.instance.simpleChanges[1], {
            fooFoo: new SimpleChange('fooFoo-1', 'fooFoo-2', false),
            barBar: new SimpleChange(undefined, 'barBar-1', true),
+           falsyUndefined: new SimpleChange(undefined, 'notanymore', false),
          });
        }));
   });