diff --git a/code/opusfile-0.2/src/stream.c b/code/opusfile-0.2/src/stream.c
index 25a96f93..5482ca56 100644
--- a/code/opusfile-0.2/src/stream.c
+++ b/code/opusfile-0.2/src/stream.c
@@ -54,7 +54,7 @@ static int op_fread(void *_stream,unsigned char *_ptr,int _buf_size){
 }
 
 static int op_fseek(void *_stream,opus_int64 _offset,int _whence){
-#if defined(_MSC_VER)
+#if defined(_MSC_VER) || defined(_WIN32)
   return _fseeki64((FILE *)_stream,_offset,_whence);
 #else
   return fseeko((FILE *)_stream,(off_t)_offset,_whence);
@@ -62,7 +62,7 @@ static int op_fseek(void *_stream,opus_int64 _offset,int _whence){
 }
 
 static opus_int64 op_ftell(void *_stream){
-#if defined(_MSC_VER)
+#if defined(_MSC_VER) || defined(_WIN32)
   return _ftelli64((FILE *)_stream);
 #else
   return ftello((FILE *)_stream);