diff --git a/extensions/composer/composer.json b/extensions/composer/composer.json
index d8cf49d..db430a2 100644
--- a/extensions/composer/composer.json
+++ b/extensions/composer/composer.json
@@ -22,6 +22,6 @@
 		"yiisoft/yii2": "*"
 	},
 	"autoload": {
-		"psr-0": { "yii\\composer": "" }
+		"psr-0": { "yii\\composer\\": "" }
 	}
 }
diff --git a/extensions/jui/composer.json b/extensions/jui/composer.json
index f5e259f..e228973 100644
--- a/extensions/jui/composer.json
+++ b/extensions/jui/composer.json
@@ -16,6 +16,6 @@
 		"yiisoft/yii2": "*"
 	},
 	"autoload": {
-		"psr-0": { "yii\\jui": "" }
+		"psr-0": { "yii\\jui\\": "" }
 	}
 }
diff --git a/extensions/mutex/composer.json b/extensions/mutex/composer.json
index db8cde3..2fb95c4 100644
--- a/extensions/mutex/composer.json
+++ b/extensions/mutex/composer.json
@@ -22,6 +22,6 @@
 		"yiisoft/yii2": "*"
 	},
 	"autoload": {
-		"psr-0": { "yii\\mutex": "" }
+		"psr-0": { "yii\\mutex\\": "" }
 	}
 }
diff --git a/extensions/smarty/composer.json b/extensions/smarty/composer.json
index b1e1681..5682574 100644
--- a/extensions/smarty/composer.json
+++ b/extensions/smarty/composer.json
@@ -23,6 +23,6 @@
 		"smarty/smarty": "v3.1.13"
 	},
 	"autoload": {
-		"psr-0": { "yii\\smarty": "" }
+		"psr-0": { "yii\\smarty\\": "" }
 	}
 }
diff --git a/extensions/twig/composer.json b/extensions/twig/composer.json
index 0c1644a..ba21065 100644
--- a/extensions/twig/composer.json
+++ b/extensions/twig/composer.json
@@ -23,6 +23,6 @@
 		"twig/twig": "1.13.*"
 	},
 	"autoload": {
-		"psr-0": { "yii\\twig": "" }
+		"psr-0": { "yii\\twig\\": "" }
 	}
 }