diff --git a/libretro-common/streams/file_stream.c b/libretro-common/streams/file_stream.c
index f6be82005a..ca867d0f12 100644
--- a/libretro-common/streams/file_stream.c
+++ b/libretro-common/streams/file_stream.c
@@ -240,7 +240,7 @@ int filestream_vscanf(RFILE *stream, const char* format, va_list *args)
    {
       if (*format == '%')
       {
-         int sublen;
+         int sublen       = 0;
          char* subfmtiter = subfmt;
          bool asterisk    = false;