diff --git a/src/kits/translation/TranslatorRoster.cpp b/src/kits/translation/TranslatorRoster.cpp
index 567a38adc7..abee983f39 100644
--- a/src/kits/translation/TranslatorRoster.cpp
+++ b/src/kits/translation/TranslatorRoster.cpp
@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2006, Haiku, Inc. All Rights Reserved.
+ * Copyright 2002-2007, Haiku, Inc. All Rights Reserved.
  * Distributed under the terms of the MIT License.
  *
  * Authors:
@@ -659,6 +659,7 @@ BTranslatorRoster::Private::Identify(BPositionIO* source,
 	_RescanChanged();
 
 	TranslatorMap::const_iterator iterator = fTranslators.begin();
+	BMessage baseExtension(*ioExtension);
 	float bestWeight = 0.0f;
 
 	while (iterator != fTranslators.end()) {
@@ -673,10 +674,12 @@ BTranslatorRoster::Private::Identify(BPositionIO* source,
 		const translation_format* format = _CheckHints(formats, formatsCount, hintType,
 			hintMIME);
 
+		BMessage extension(baseExtension);
 		translator_info info;
-		if (translator.Identify(source, format, ioExtension, &info, wantType) == B_OK) {
+		if (translator.Identify(source, format, &extension, &info, wantType) == B_OK) {
 			float weight = info.quality * info.capability;
 			if (weight > bestWeight) {
+				*ioExtension = extension;
 				bestWeight = weight;
 
 				info.translator = iterator->first;