The Independent JPEG Group's JPEG software v6
diff --git a/rdjpgcom.c b/rdjpgcom.c
index 503ccba..99e41e6 100644
--- a/rdjpgcom.c
+++ b/rdjpgcom.c
@@ -100,7 +100,7 @@
#define M_SOF0 0xC0 /* Start Of Frame N */
#define M_SOF1 0xC1 /* N indicates which compression process */
-#define M_SOF2 0xC2 /* Only SOF0 and SOF1 are now in common use */
+#define M_SOF2 0xC2 /* Only SOF0-SOF2 are now in common use */
#define M_SOF3 0xC3
#define M_SOF5 0xC5 /* NB: codes C4 and CC are NOT SOF markers */
#define M_SOF6 0xC6