diff --git a/platform/lang-impl/src/com/intellij/ide/fileTemplates/impl/BundledFileTemplate.java b/platform/lang-impl/src/com/intellij/ide/fileTemplates/impl/BundledFileTemplate.java
index 43833e79b3e1..0a1b4a5cb579 100644
--- a/platform/lang-impl/src/com/intellij/ide/fileTemplates/impl/BundledFileTemplate.java
+++ b/platform/lang-impl/src/com/intellij/ide/fileTemplates/impl/BundledFileTemplate.java
@@ -101,4 +101,9 @@ public final class BundledFileTemplate extends FileTemplateBase {
   public boolean isTextModified() {
     return !getText().equals(getDefaultText());
   }
+
+  @Override
+  public String toString() {
+    return myDefaultTemplate.getTemplateURL() == null ? "" : myDefaultTemplate.getTemplateURL().toString();
+  }
 }
diff --git a/platform/lang-impl/src/com/intellij/ide/fileTemplates/impl/FTManager.java b/platform/lang-impl/src/com/intellij/ide/fileTemplates/impl/FTManager.java
index 1938241e6dab..b1b6cec2d2ad 100644
--- a/platform/lang-impl/src/com/intellij/ide/fileTemplates/impl/FTManager.java
+++ b/platform/lang-impl/src/com/intellij/ide/fileTemplates/impl/FTManager.java
@@ -188,7 +188,8 @@ class FTManager {
     final FileTemplateBase previous = myTemplates.put(qName, bundled);
     mySortedTemplates = null;
 
-    LOG.assertTrue(previous == null, "Duplicate bundled template " + qName);
+    LOG.assertTrue(previous == null, "Duplicate bundled template " + qName +
+                                     " [" + template.getTemplateURL() + ", " + previous + ']');
     return bundled;
   }