diff --git a/core/lib/Drupal/Core/Config/ConfigInstaller.php b/core/lib/Drupal/Core/Config/ConfigInstaller.php
index cc0d88f..97c3688 100644
--- a/core/lib/Drupal/Core/Config/ConfigInstaller.php
+++ b/core/lib/Drupal/Core/Config/ConfigInstaller.php
@@ -511,6 +511,7 @@ protected function findDefaultConfigWithUnmetDependencies(StorageInterface $stor
    *   TRUE if the dependencies are met, FALSE if not.
    */
   protected function validateDependencies($config_name, array $data, array $enabled_extensions, array $all_config) {
+    list($provider) = explode('.', $config_name, 2);
     if (isset($data['dependencies'])) {
       $all_dependencies = $data['dependencies'];
 
@@ -521,7 +522,6 @@ protected function validateDependencies($config_name, array $data, array $enable
       }
       // Ensure the configuration entity type provider is in the list of
       // dependencies.
-      list($provider) = explode('.', $config_name, 2);
       if (!isset($all_dependencies['module'])) {
         $all_dependencies['module'][] = $provider;
       }
@@ -548,6 +548,10 @@ protected function validateDependencies($config_name, array $data, array $enable
         }
       }
     }
+    else {
+      // Simple config or a config entity without dependencies.
+      return in_array($provider, $enabled_extensions, TRUE);
+    }
     return TRUE;
   }
 
diff --git a/core/modules/config/src/Tests/ConfigInstallWebTest.php b/core/modules/config/src/Tests/ConfigInstallWebTest.php
index 0867f4b..63b799c 100644
--- a/core/modules/config/src/Tests/ConfigInstallWebTest.php
+++ b/core/modules/config/src/Tests/ConfigInstallWebTest.php
@@ -180,7 +180,7 @@ public function testUnmetDependenciesInstall() {
     // not depend on config_test and order is important.
     $this->drupalPostForm('admin/modules', array('modules[Testing][config_test][enable]' => TRUE), t('Install'));
     $this->drupalPostForm('admin/modules', array('modules[Testing][config_install_dependency_test][enable]' => TRUE), t('Install'));
-    $this->assertRaw('Unable to install Config install dependency test, <em class="placeholder">config_test.dynamic.other_module_test_with_dependency</em> has unmet dependencies.');
+    $this->assertRaw('Unable to install Config install dependency test, <em class="placeholder">config_other_module_config_test.weird_simple_config, config_test.dynamic.other_module_test_with_dependency</em> have unmet dependencies.');
 
     $this->drupalPostForm('admin/modules', array('modules[Testing][config_other_module_config_test][enable]' => TRUE), t('Install'));
     $this->drupalPostForm('admin/modules', array('modules[Testing][config_install_dependency_test][enable]' => TRUE), t('Install'));
diff --git a/core/modules/config/tests/config_install_dependency_test/config/install/config_other_module_config_test.weird_simple_config.yml b/core/modules/config/tests/config_install_dependency_test/config/install/config_other_module_config_test.weird_simple_config.yml
new file mode 100644
index 0000000..20e9ff3
--- /dev/null
+++ b/core/modules/config/tests/config_install_dependency_test/config/install/config_other_module_config_test.weird_simple_config.yml
@@ -0,0 +1 @@
+foo: bar
diff --git a/core/modules/config/tests/config_other_module_config_test/config/schema/config_other_module_config_test.schema.yml b/core/modules/config/tests/config_other_module_config_test/config/schema/config_other_module_config_test.schema.yml
new file mode 100644
index 0000000..9025158
--- /dev/null
+++ b/core/modules/config/tests/config_other_module_config_test/config/schema/config_other_module_config_test.schema.yml
@@ -0,0 +1,5 @@
+config_other_module_config_test.weird_simple_config:
+  type: config_object
+  mapping:
+    foo:
+      type: string
diff --git a/core/modules/contact/config/install/foo.bar.yml b/core/modules/contact/config/install/foo.bar.yml
new file mode 100644
index 0000000..f4ae0c2
--- /dev/null
+++ b/core/modules/contact/config/install/foo.bar.yml
@@ -0,0 +1,5 @@
+default_form: feedback
+flood:
+  limit: 5
+  interval: 3600
+user_default_enabled: true
diff --git a/core/tests/Drupal/KernelTests/Core/Config/ConfigInstallTest.php b/core/tests/Drupal/KernelTests/Core/Config/ConfigInstallTest.php
index 20aa72a..f8d76c8 100644
--- a/core/tests/Drupal/KernelTests/Core/Config/ConfigInstallTest.php
+++ b/core/tests/Drupal/KernelTests/Core/Config/ConfigInstallTest.php
@@ -199,8 +199,8 @@ public function testDependencyChecking() {
     }
     catch (UnmetDependenciesException $e) {
       $this->assertEqual($e->getExtension(), 'config_install_dependency_test');
-      $this->assertEqual($e->getConfigObjects(), ['config_test.dynamic.other_module_test_with_dependency']);
-      $this->assertEqual($e->getMessage(), 'Configuration objects (config_test.dynamic.other_module_test_with_dependency) provided by config_install_dependency_test have unmet dependencies');
+      $this->assertEqual($e->getConfigObjects(), ['config_other_module_config_test.weird_simple_config', 'config_test.dynamic.other_module_test_with_dependency']);
+      $this->assertEqual($e->getMessage(), 'Configuration objects (config_other_module_config_test.weird_simple_config, config_test.dynamic.other_module_test_with_dependency) provided by config_install_dependency_test have unmet dependencies');
     }
     $this->installModules(['config_other_module_config_test']);
     $this->installModules(['config_install_dependency_test']);