diff --git a/src/offlinemap.cpp b/src/offlinemap.cpp
index 27c98fe3..a31be8d7 100644
--- a/src/offlinemap.cpp
+++ b/src/offlinemap.cpp
@@ -348,11 +348,12 @@ bool OfflineMap::getImageInfo(const QString &path)
 	}
 
 	QString suffix = ii.suffix().toLower();
-	if (suffix == "ozf3" || suffix == "ozf4") {
+	if (suffix == "ozf3" || suffix == "ozfx3" || suffix == "ozf4"
+	  || suffix == "ozfx4") {
 		_errorString = QString("%1: Obfuscated image files not supported")
 		  .arg(QFileInfo(_imgPath).fileName());
 		return false;
-	} else if (suffix == "ozf2") {
+	} else if (suffix == "ozf2" || suffix == "ozfx2") {
 		_ozf.load(_imgPath);
 		_size = _ozf.size();
 	} else {