diff --git a/src/nostalgia/studio/lib/project.cpp b/src/nostalgia/studio/lib/project.cpp
index 5ae887fa..46ebf6ea 100644
--- a/src/nostalgia/studio/lib/project.cpp
+++ b/src/nostalgia/studio/lib/project.cpp
@@ -53,7 +53,7 @@ void Project::buildFileIndex() noexcept {
 	m_fileExtFileMap.clear();
 	std::sort(files.begin(), files.end());
 	for (const auto &file : files) {
-		if (!file.beginsWith("/.nostalgia/")) {
+		if (!beginsWith(file, "/.nostalgia/")) {
 			indexFile(file);
 		}
 	}