diff --git a/libgrive/src/drive/Entry.cc b/libgrive/src/drive/Entry.cc
index 4fa8bbc..ba77408 100644
--- a/libgrive/src/drive/Entry.cc
+++ b/libgrive/src/drive/Entry.cc
@@ -61,7 +61,7 @@ void Entry::FromLocal( const fs::path& path )
 	m_filename	= path.filename().string() ;
 	m_kind		= fs::is_directory(path) ? "folder"	: "file" ;
 	m_md5		= fs::is_directory(path) ? ""		: crypt::MD5( path ) ;
-	m_mtime		= fs::exists(path) ? os::FileMTime( path ) : DateTime() ;
+	m_mtime		= fs::exists(path) ? os::FileCTime( path ) : DateTime() ;
 }
 
 void Entry::Update( const xml::Node& n )
diff --git a/libgrive/src/drive/Resource.cc b/libgrive/src/drive/Resource.cc
index f56c12c..0b7690f 100644
--- a/libgrive/src/drive/Resource.cc
+++ b/libgrive/src/drive/Resource.cc
@@ -179,7 +179,7 @@ void Resource::FromLocal( const DateTime& last_sync )
 		// if the file is not created after last sync, assume file is
 		// remote_deleted first, it will be updated to sync/remote_changed
 		// in FromRemote()
-		DateTime mtime = os::FileMTime( path ) ;
+		DateTime mtime = os::FileCTime( path ) ;
 		m_state = ( mtime > last_sync ? local_new : remote_deleted ) ;
 		
 		m_entry.FromLocal( path ) ;
diff --git a/libgrive/src/util/OS.cc b/libgrive/src/util/OS.cc
index 31cc959..0d51136 100644
--- a/libgrive/src/util/OS.cc
+++ b/libgrive/src/util/OS.cc
@@ -39,12 +39,12 @@
 
 namespace gr { namespace os {
 
-DateTime FileMTime( const fs::path& filename )
+DateTime FileCTime( const fs::path& filename )
 {
-	return FileMTime( filename.string() ) ;
+	return FileCTime( filename.string() ) ;
 }
 
-DateTime FileMTime( const std::string& filename )
+DateTime FileCTime( const std::string& filename )
 {
 	struct stat s = {} ;
 	if ( ::stat( filename.c_str(), &s ) != 0 )
@@ -58,9 +58,9 @@ DateTime FileMTime( const std::string& filename )
 	}
 	
 #if defined __APPLE__ && defined __DARWIN_64_BIT_INO_T
-	return DateTime( s.st_mtimespec.tv_sec, s.st_mtimespec.tv_nsec ) ;
+	return DateTime( s.st_ctimespec.tv_sec, s.st_ctimespec.tv_nsec ) ;
 #else
-	return DateTime( s.st_mtim.tv_sec, s.st_mtim.tv_nsec);
+	return DateTime( s.st_ctim.tv_sec, s.st_ctim.tv_nsec);
 #endif
 }
 
diff --git a/libgrive/src/util/OS.hh b/libgrive/src/util/OS.hh
index efcb055..4a0350d 100644
--- a/libgrive/src/util/OS.hh
+++ b/libgrive/src/util/OS.hh
@@ -33,8 +33,8 @@ namespace os
 {
 	struct Error : virtual Exception {} ;
 	
-	DateTime FileMTime( const std::string& filename ) ;
-	DateTime FileMTime( const fs::path& filename ) ;
+	DateTime FileCTime( const std::string& filename ) ;
+	DateTime FileCTime( const fs::path& filename ) ;
 	
 	void SetFileTime( const std::string& filename, const DateTime& t ) ;
 	void SetFileTime( const fs::path& filename, const DateTime& t ) ;