diff --git a/firmware/application/apps/ui_fileman.cpp b/firmware/application/apps/ui_fileman.cpp
index 9271bc92..42ef2f82 100644
--- a/firmware/application/apps/ui_fileman.cpp
+++ b/firmware/application/apps/ui_fileman.cpp
@@ -267,14 +267,15 @@ void FileManagerView::on_refactor(NavigationView& nav) {
 		std::string destination_path = current_path.string();
 		if (destination_path.back() != '/')
 			destination_path += '/';
-		destination_path = destination_path + buffer;
+
+		destination_path = get_selected_path().string().back() != '/' ? destination_path + buffer + extension_buffer : destination_path + buffer;
 
 		rename_file(get_selected_path(), destination_path);  //rename the selected file
 
 		auto selected_path = get_selected_path();
 		auto extension = selected_path.extension().string();
 
-		if (!extension.empty() && selected_path.string().back() != '/' && extension.substr(1) == "C16") {
+		if (!extension.empty() && selected_path.string().back() != '/' && extension.substr(1) == "C16") { //substr(1) is for ignore the dot
 			// Rename its partner ( C16 <-> TXT ) file.
 			auto partner_file_path = selected_path.string().substr(0, selected_path.string().size() - 4) + ".TXT";
 			destination_path = destination_path.substr(0, destination_path.size() - 4) + ".TXT";
@@ -359,6 +360,13 @@ FileManagerView::FileManagerView(
 
 		button_refactor.on_select = [this, &nav](Button&) {
 			name_buffer = entry_list[menu_view.highlighted_index()].entry_path.filename().string().substr(0, max_filename_length);
+			size_t pos = name_buffer.find_last_of(".");
+
+			if (pos != std::string::npos) {
+				extension_buffer = name_buffer.substr(pos);
+				name_buffer = name_buffer.substr(0, pos);
+			}
+
 			on_refactor(nav);
 		};
 
diff --git a/firmware/application/apps/ui_fileman.hpp b/firmware/application/apps/ui_fileman.hpp
index 261295e8..cfea0848 100644
--- a/firmware/application/apps/ui_fileman.hpp
+++ b/firmware/application/apps/ui_fileman.hpp
@@ -143,6 +143,7 @@ public:
 
 private:
 	std::string name_buffer { };
+	std::string extension_buffer { };
 	
 	void refresh_widgets(const bool v);
 	void on_rename(NavigationView& nav);