diff --git a/framework/CHANGELOG.md b/framework/CHANGELOG.md
index ba8ba724c1..c3269b521c 100644
--- a/framework/CHANGELOG.md
+++ b/framework/CHANGELOG.md
@@ -91,6 +91,7 @@ Yii Framework 2 Change Log
 - Bug #4880: Return value of yii\web\Request::getPrefferedLanguage() was a normalized value instead of a valid language value from the input array (cebe)
 - Bug #4905: ActiveForm::$validationDelay doesn't delay after keyrelease when $validateOnType=true (qiangxue)
 - Bug #4920: `yii\filters\auth\CompositeAuth` should not trigger error as long as one of the methods succeeds (qiangxue)
+- Bug #4926: Fixed `yii\console\controllers\MessageController` handles category name containing dot incorrectly (klimov-paul)
 - Bug #4938: When `yii\db\ActiveQuery` is used to build sub-queries, its WHERE clause is not correctly generated (qiangxue)
 - Bug #4954: MSSQL column comments are not retrieved correctly (SerjRamone)
 - Bug #4970: `joinWith()` called by a relation was ignored by `yii\db\ActiveQuery` (stepanselyuk)
diff --git a/framework/console/controllers/MessageController.php b/framework/console/controllers/MessageController.php
index 1e1b5f1c4b..7a1e335736 100644
--- a/framework/console/controllers/MessageController.php
+++ b/framework/console/controllers/MessageController.php
@@ -260,13 +260,9 @@ class MessageController extends Controller
                 PREG_SET_ORDER
             );
             for ($i = 0; $i < $n; ++$i) {
-                if (($pos = strpos($matches[$i][1], '.')) !== false) {
-                    $category = substr($matches[$i][1], $pos + 1, -1);
-                } else {
-                    $category = substr($matches[$i][1], 1, -1);
-                }
+                $category = substr($matches[$i][1], 1, -1);
                 $message = $matches[$i][2];
-                $messages[$category][] = eval("return $message;"); // use eval to eliminate quote escape
+                $messages[$category][] = eval("return {$message};"); // use eval to eliminate quote escape
             }
         }
 
diff --git a/tests/unit/framework/console/controllers/BaseMessageControllerTest.php b/tests/unit/framework/console/controllers/BaseMessageControllerTest.php
index 0295d4037f..1aadd62f7c 100644
--- a/tests/unit/framework/console/controllers/BaseMessageControllerTest.php
+++ b/tests/unit/framework/console/controllers/BaseMessageControllerTest.php
@@ -139,7 +139,7 @@ abstract class BaseMessageControllerTest extends TestCase
 
     public function testCreateTranslation()
     {
-        $category = 'test_category1';
+        $category = 'test.category1';
         $message = 'test message';
         $sourceFileContent = "Yii::t('{$category}', '{$message}');";
         $this->createSourceFile($sourceFileContent);
@@ -200,7 +200,7 @@ abstract class BaseMessageControllerTest extends TestCase
     /**
      * @depends testMerge
      */
-    public function testMarkObosoleteMessages()
+    public function testMarkObsoleteMessages()
     {
         $category = 'category';
 
@@ -223,7 +223,7 @@ abstract class BaseMessageControllerTest extends TestCase
     /**
      * @depends testMerge
      */
-    public function removeObosoleteMessages()
+    public function removeObsoleteMessages()
     {
         $category = 'category';