diff --git a/src/common.cpp b/src/common.cpp
index 045efdc..1c7d6c9 100644
--- a/src/common.cpp
+++ b/src/common.cpp
@@ -22,7 +22,7 @@ bool saveData(const std::string& exportName, const ModelData& data, const std::f
 		++classIndex;
 	} while(std::filesystem::exists(outDir/filename));
 
-	if(!saveToDisk(eis::EisSpectra(data.data, data.modelStr, data.id + ", \"" + std::string(originFile.filename()) + "\""), outDir/filename))
+	if(!saveToDisk(eis::EisSpectra(data.data, data.modelStr, data.id + ", \"" + originFile.filename().string() + "\""), outDir/filename))
 	{
 		std::cerr<<"Unable to save to "<<outDir/filename;
 		return false;