diff --git a/json/src/com/intellij/json/psi/impl/JsonFileImpl.java b/json/src/com/intellij/json/psi/impl/JsonFileImpl.java
index 26e7f6399a6f..b2cb9690103b 100644
--- a/json/src/com/intellij/json/psi/impl/JsonFileImpl.java
+++ b/json/src/com/intellij/json/psi/impl/JsonFileImpl.java
@@ -33,6 +33,6 @@ public class JsonFileImpl extends PsiFileBase implements JsonFile {
   @Override
   public String toString() {
     final VirtualFile virtualFile = getVirtualFile();
-    return String.format("JsonFile: " + (virtualFile != null? virtualFile.getName() : "<unknown>"));
+    return "JsonFile: " + (virtualFile != null? virtualFile.getName() : "<unknown>");
   }
 }