diff --git a/src/fs_find_mount_point.hpp b/src/fs_find_mount_point.hpp
index 467c898c..f99cf3e6 100644
--- a/src/fs_find_mount_point.hpp
+++ b/src/fs_find_mount_point.hpp
@@ -22,5 +22,5 @@
 
 namespace fs
 {
-  int find_mount_point(const ghc::filesystem::path &path);
+  ghc::filesystem::path find_mount_point(const ghc::filesystem::path &path);
 }