diff --git a/src/applib/storage_device.cpp b/src/applib/storage_device.cpp
index bd2993a..a7f7199 100644
--- a/src/applib/storage_device.cpp
+++ b/src/applib/storage_device.cpp
@@ -815,7 +815,7 @@ std::string StorageDevice::get_save_filename() const
 {
 	std::string model = this->get_model_name();  // may be empty
 	std::string serial = this->get_serial_number();
-	std::string date = hz::format_date("%Y-%m-%d", false);
+	std::string date = hz::format_date("%Y-%m-%d_%H%M", true);
 
 	std::string filename_format;
 	rconfig::get_data("gui/smartctl_output_filename_format", filename_format);