diff --git a/main.c b/main.c
index 3dc76ad..23ffb29 100644
--- a/main.c
+++ b/main.c
@@ -52,6 +52,7 @@ static void usage(void)
 	print_output("     -V            show version\n");
 	print_output("     -t            test compressed file integrity\n");
 	print_output("     -i            show compressed file information\n");
+	print_output("     -H            display md5 Hash integrity information\n");
 	print_output("\nIf no filenames or \"-\" is specified, stdin/out will be used.\n");
 }
 
@@ -569,7 +570,7 @@ int main(int argc, char *argv[])
 	else if (!strstr(eptr,"NOCONFIG"))
 		read_config(&control);
 
-	while ((c = getopt(argc, argv, "L:hdS:tVvDfqo:w:nlbMUO:T:N:p:gzi")) != -1) {
+	while ((c = getopt(argc, argv, "L:hdS:tVvDfqo:w:nlbMUO:T:N:p:gziH")) != -1) {
 		switch (c) {
 		case 'L':
 			control.compression_level = atoi(optarg);
@@ -683,6 +684,9 @@ int main(int argc, char *argv[])
 		case 'i':
 			control.flags |= FLAG_INFO;
 			break;
+		case 'H':
+			control.flags |= FLAG_HASH;
+			break;
 		case 'h':
 			usage();
 			return -1;
diff --git a/runzip.c b/runzip.c
index ecb0748..cad0750 100644
--- a/runzip.c
+++ b/runzip.c
@@ -243,7 +243,7 @@ i64 runzip_fd(int fd_in, int fd_out, int fd_hist, i64 expected_size)
 
 	md5_finish_ctx (&control.ctx, md5_resblock);
 	if (HASH_CHECK || VERBOSE) {
-		print_output("MD5 sum: ");
+		print_output("MD5: ");
 		for (j = 0; j < MD5_DIGEST_SIZE; j++)
 			print_output("%02x", md5_resblock[j] & 0xFF);
 		print_output("\n");
diff --git a/rzip.c b/rzip.c
index 66ad38c..ad5b7ea 100644
--- a/rzip.c
+++ b/rzip.c
@@ -917,7 +917,7 @@ retry:
 
 	md5_finish_ctx (&control.ctx, md5_resblock);
 	if (HASH_CHECK || VERBOSE) {
-		print_output("MD5 sum: ");
+		print_output("MD5: ");
 		for (j = 0; j < MD5_DIGEST_SIZE; j++)
 			print_output("%02x", md5_resblock[j] & 0xFF);
 		print_output("\n");