From 5d939d92ff4cfddc0ec90766721457c0d81a6232 Mon Sep 17 00:00:00 2001
From: klemenoslaj <klemenoslaj0@gmail.com>
Date: Thu, 24 Sep 2020 10:38:53 +0200
Subject: [PATCH] fix(material/checkbox): add the boolean property coercion for
 checked input

---
 src/material/checkbox/checkbox.ts | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/src/material/checkbox/checkbox.ts b/src/material/checkbox/checkbox.ts
index f9a7d5031848..fbf6687e2c75 100644
--- a/src/material/checkbox/checkbox.ts
+++ b/src/material/checkbox/checkbox.ts
@@ -260,9 +260,11 @@ export class MatCheckbox
   get checked(): boolean {
     return this._checked;
   }
-  set checked(value: boolean) {
-    if (value != this.checked) {
-      this._checked = value;
+  set checked(value: BooleanInput) {
+    const checked = coerceBooleanProperty(value);
+
+    if (checked != this.checked) {
+      this._checked = checked;
       this._changeDetectorRef.markForCheck();
     }
   }