diff --git a/iptables/ip6tables-save.c b/iptables/ip6tables-save.c
index 16821da..56e5afb 100644
--- a/iptables/ip6tables-save.c
+++ b/iptables/ip6tables-save.c
@@ -137,7 +137,7 @@
 	init_extensions6();
 #endif
 
-	while ((c = getopt_long(argc, argv, "bcdt:", options, NULL)) != -1) {
+	while ((c = getopt_long(argc, argv, "bcdt:M:", options, NULL)) != -1) {
 		switch (c) {
 		case 'b':
 			fprintf(stderr, "-b/--binary option is not implemented\n");
diff --git a/iptables/iptables-save.8.in b/iptables/iptables-save.8.in
index 6128280..7f99d8a 100644
--- a/iptables/iptables-save.8.in
+++ b/iptables/iptables-save.8.in
@@ -36,7 +36,7 @@
 are used to dump the contents of IP or IPv6 Table in easily parseable format
 to STDOUT. Use I/O-redirection provided by your shell to write to a file.
 .TP
-\fB\-M\fP \fImodprobe_program\fP
+\fB\-M\fR, \fB\-\-modprobe\fR \fImodprobe_program\fP
 Specify the path to the modprobe program. By default, iptables-save will
 inspect /proc/sys/kernel/modprobe to determine the executable's path.
 .TP
diff --git a/iptables/iptables-save.c b/iptables/iptables-save.c
index 2c25b71..bcf88ae 100644
--- a/iptables/iptables-save.c
+++ b/iptables/iptables-save.c
@@ -136,7 +136,7 @@
 	init_extensions4();
 #endif
 
-	while ((c = getopt_long(argc, argv, "bcdt:", options, NULL)) != -1) {
+	while ((c = getopt_long(argc, argv, "bcdt:M:", options, NULL)) != -1) {
 		switch (c) {
 		case 'b':
 			fprintf(stderr, "-b/--binary option is not implemented\n");
diff --git a/iptables/xtables-save.c b/iptables/xtables-save.c
index fe77283..d51cdcf 100644
--- a/iptables/xtables-save.c
+++ b/iptables/xtables-save.c
@@ -104,7 +104,7 @@
 		exit(EXIT_FAILURE);
 	}
 
-	while ((c = getopt_long(argc, argv, "bcdt:46", options, NULL)) != -1) {
+	while ((c = getopt_long(argc, argv, "bcdt:M:46", options, NULL)) != -1) {
 		switch (c) {
 		case 'b':
 			fprintf(stderr, "-b/--binary option is not implemented\n");