diff --git a/core/lib/Drupal/Core/TypedData/Plugin/DataType/Map.php b/core/lib/Drupal/Core/TypedData/Plugin/DataType/Map.php
index 7694db5..990851e 100644
--- a/core/lib/Drupal/Core/TypedData/Plugin/DataType/Map.php
+++ b/core/lib/Drupal/Core/TypedData/Plugin/DataType/Map.php
@@ -208,7 +208,7 @@ public function isEmpty() {
     }
     if (isset($this->values)) {
       foreach ($this->values as $name => $value) {
-        if (isset($value) && !isset($this->properties[$name])) {
+        if (isset($value) && !isset($this->properties[$name]) && $value !== '') {
           return FALSE;
         }
       }
diff --git a/core/modules/node/src/Tests/NodeValidationTest.php b/core/modules/node/src/Tests/NodeValidationTest.php
index b38af1c..3a939c9 100644
--- a/core/modules/node/src/Tests/NodeValidationTest.php
+++ b/core/modules/node/src/Tests/NodeValidationTest.php
@@ -55,6 +55,11 @@ public function testValidation() {
     $this->assertEqual($violations[0]->getPropertyPath(), 'title');
     $this->assertEqual($violations[0]->getMessage(), 'This value should not be null.');
 
+    $node->set('title', "");
+    $violations = $node->validate();
+    $this->assertEqual(count($violations), 1, 'Violation found when title is not set.');
+    $this->assertEqual($violations[0]->getPropertyPath(), 'title');
+
     // Make the title valid again.
     $node->set('title', $this->randomString());
     // Save the node so that it gets an ID and a changed date.