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