diff --git a/src/utils/checksum.c b/src/utils/checksum.c
index da5c8df..0b325f3 100644
--- a/src/utils/checksum.c
+++ b/src/utils/checksum.c
@@ -1,6 +1,7 @@
 #include <stdint.h>
 #include <stddef.h>
 
+
 /* Forward Declarations */
 static inline uint16_t read_be16(const uint8_t *ptr);
 static uint32_t sum_words(const uint8_t *data, size_t len);
@@ -32,10 +33,10 @@ sum_words(const uint8_t *data, size_t len)
 	{
 		size_t n = (words + 3) >> 2;
 		switch (words & 3) {
-		case 0: do { sum += read_be16(ptr); ptr += 2;
-		case 3:		 sum += read_be16(ptr); ptr += 2;
-		case 2:		 sum += read_be16(ptr); ptr += 2;
-		case 1:		 sum += read_be16(ptr); ptr += 2;
+		case 0: do { sum += read_be16(ptr); ptr += 2; /* fall through */
+		case 3:		 sum += read_be16(ptr); ptr += 2; /* fall through */
+		case 2:		 sum += read_be16(ptr); ptr += 2; /* fall through */
+		case 1:		 sum += read_be16(ptr); ptr += 2; /* fall through */
 				} while (--n > 0);
 		}
 	}