diff --git a/src/core/instance/inject.js b/src/core/instance/inject.js
index b68ded58090..38fa6b108aa 100644
--- a/src/core/instance/inject.js
+++ b/src/core/instance/inject.js
@@ -3,6 +3,7 @@
 import { hasSymbol } from 'core/util/env'
 import { warn } from '../util/index'
 import { defineReactive } from '../observer/index'
+import { hasOwn } from 'shared/util'
 
 export function initProvide (vm: Component) {
   const provide = vm.$options.provide
@@ -57,6 +58,9 @@ export function resolveInject (inject: any, vm: Component): ?Object {
         }
         source = source.$parent
       }
+      if (process.env.NODE_ENV !== 'production' && !hasOwn(result, key)) {
+        warn(`Injection "${key}" not found`, vm)
+      }
     }
     return result
   }
diff --git a/test/unit/features/options/inject.spec.js b/test/unit/features/options/inject.spec.js
index fdb69ea1c34..3181a19fcdc 100644
--- a/test/unit/features/options/inject.spec.js
+++ b/test/unit/features/options/inject.spec.js
@@ -240,4 +240,33 @@ describe('Options provide/inject', () => {
       `overwritten whenever the provided component re-renders. ` +
       `injection being mutated: "${key}"`).toHaveBeenWarned()
   })
+
+  it('should warn when injections cannot be found', () => {
+    const vm = new Vue({})
+    new Vue({
+      parent: vm,
+      inject: ['foo', 'bar'],
+      created () {}
+    })
+    expect(`Injection "foo" not found`).toHaveBeenWarned()
+    expect(`Injection "bar" not found`).toHaveBeenWarned()
+  })
+
+  it('should not warn when injections can be found', () => {
+    const vm = new Vue({
+      provide: {
+        foo: 1,
+        bar: false,
+        baz: undefined
+      }
+    })
+    new Vue({
+      parent: vm,
+      inject: ['foo', 'bar', 'baz'],
+      created () {}
+    })
+    expect(`Injection "foo" not found`).not.toHaveBeenWarned()
+    expect(`Injection "bar" not found`).not.toHaveBeenWarned()
+    expect(`Injection "baz" not found`).not.toHaveBeenWarned()
+  })
 })