diff --git a/core/lib/Drupal/Core/Config/TypedConfigManager.php b/core/lib/Drupal/Core/Config/TypedConfigManager.php
index 11462ef..24b6366 100644
--- a/core/lib/Drupal/Core/Config/TypedConfigManager.php
+++ b/core/lib/Drupal/Core/Config/TypedConfigManager.php
@@ -170,17 +170,16 @@ public function clearCachedDefinitions() {
    *   Colons are also used, for example,
    *   block.settings.system_menu_block:footer check will for definitions in the
    *   following order:
-   *     block.settings.system_menu_block:*
-   *     block.settings.*:*
+   *     block.settings.system_menu_block*
    *     block.settings.*
-   *     block.*.*:*
+   *     block.*.*
    *     block.*
    *
    *   Returns null, if no matching element.
    */
   protected function getFallbackName($name) {
     // Check for definition of $name with filesystem marker.
-    $replaced = preg_replace('/([^\.:]+)([\.:\*]*)$/', '*\2', $name);
+    $replaced = preg_replace('/:?([^\.:]+)([\.:\*]*)$/', '*\2', $name);
     if ($replaced != $name) {
       if (isset($this->definitions[$replaced])) {
         return $replaced;
@@ -190,7 +189,7 @@ protected function getFallbackName($name) {
         // wildcard to see if there is a greedy match. For example,
         // breakpoint.breakpoint.*.* becomes
         // breakpoint.breakpoint.*
-        $one_star = preg_replace('/\.([:\.\*]*)$/', '.*', $replaced);
+        $one_star = preg_replace('/\.([\.\*]*)$/', '.*', $replaced);
         if ($one_star != $replaced && isset($this->definitions[$one_star])) {
           return $one_star;
         }
diff --git a/core/modules/config/src/Tests/ConfigSchemaTest.php b/core/modules/config/src/Tests/ConfigSchemaTest.php
index a050b46..010ea19 100644
--- a/core/modules/config/src/Tests/ConfigSchemaTest.php
+++ b/core/modules/config/src/Tests/ConfigSchemaTest.php
@@ -406,7 +406,7 @@ function testSchemaTypeResolver() {
     $this->assertEqual($definition['type'], 'test.plugin_types.boolean');
 
     $definition = $tests[1]->getDataDefinition()->toArray();
-    $this->assertEqual($definition['type'], 'test.plugin_types.boolean:*');
+    $this->assertEqual($definition['type'], 'test.plugin_types.boolean*');
 
     $definition = $tests[2]->getDataDefinition()->toArray();
     $this->assertEqual($definition['type'], 'test.plugin_types.*');
@@ -419,7 +419,7 @@ function testSchemaTypeResolver() {
     $this->assertEqual($definition['type'], 'test_with_parents.plugin_types.boolean');
 
     $definition = $tests[1]['settings']->getDataDefinition()->toArray();
-    $this->assertEqual($definition['type'], 'test_with_parents.plugin_types.boolean:*');
+    $this->assertEqual($definition['type'], 'test_with_parents.plugin_types.boolean*');
 
     $definition = $tests[2]['settings']->getDataDefinition()->toArray();
     $this->assertEqual($definition['type'], 'test_with_parents.plugin_types.*');
diff --git a/core/modules/config/tests/config_schema_test/config/schema/config_schema_test.schema.yml b/core/modules/config/tests/config_schema_test/config/schema/config_schema_test.schema.yml
index 888ad5f..bcca468 100644
--- a/core/modules/config/tests/config_schema_test/config/schema/config_schema_test.schema.yml
+++ b/core/modules/config/tests/config_schema_test/config/schema/config_schema_test.schema.yml
@@ -181,7 +181,7 @@ test.plugin_types.boolean:
     value:
       type: boolean
 
-'test.plugin_types.boolean:*':
+test.plugin_types.boolean*:
   type: test.plugin_types.boolean
 
 test_with_parents.plugin_types.boolean:
@@ -190,7 +190,7 @@ test_with_parents.plugin_types.boolean:
     value:
       type: boolean
 
-'test_with_parents.plugin_types.boolean:*':
+test_with_parents.plugin_types.boolean*:
   type: test_with_parents.plugin_types.boolean
 
 test.plugin_types.*: