diff --git a/libs/evoral/SMF.cc b/libs/evoral/SMF.cc
index 6889073bf3..0f76bbd4fa 100644
--- a/libs/evoral/SMF.cc
+++ b/libs/evoral/SMF.cc
@@ -260,7 +260,7 @@ SMF::create(const std::string& path, int track, uint16_t ppqn)
 	{
 		/* put a stub file on disk */
 
-		FILE* f = g_fopen (path.c_str(), "wb+");
+		FILE* f = g_fopen (path.c_str(), "w+b");
 		if (f == 0) {
 			return -1;
 		}
@@ -513,7 +513,7 @@ SMF::end_write(string const & path)
 		return;
 	}
 
-	FILE* f = g_fopen (path.c_str(), "wb+");
+	FILE* f = g_fopen (path.c_str(), "w+b");
 	if (f == 0) {
 		throw FileError (path);
 	}
diff --git a/libs/evoral/SMFReader.cc b/libs/evoral/SMFReader.cc
index d207ccf328..b0350e7956 100644
--- a/libs/evoral/SMFReader.cc
+++ b/libs/evoral/SMFReader.cc
@@ -59,7 +59,7 @@ SMFReader::open(const string& filename) throw (logic_error, UnsupportedTime)
 
 	cout << "Opening SMF file " << filename << " for reading." << endl;
 
-	_fd = g_fopen(filename.c_str(), "rb+");
+	_fd = g_fopen(filename.c_str(), "r+b");
 
 	if (_fd) {
 		// Read type (bytes 8..9)