diff --git a/src/meta/bfstm.c b/src/meta/bfstm.c
index 3eed6455..67e36292 100644
--- a/src/meta/bfstm.c
+++ b/src/meta/bfstm.c
@@ -27,7 +27,7 @@ VGMSTREAM * init_vgmstream_bfstm(STREAMFILE *streamFile) {
 	/* check header */
 	if ((uint32_t)read_32bitBE(0, streamFile) != 0x4653544D) /* "FSTM" */
 		goto fail;
-	if ((uint32_t)read_32bitBE(4, streamFile) != 0xFEFF0040)
+	if ((uint32_t)read_16bitBE(4, streamFile) != 0xFEFF)
 		goto fail;
 
 	founddata = 0;