diff --git a/Shorewall-common/changelog.txt b/Shorewall-common/changelog.txt
index 59db68732..d7fd7bc39 100644
--- a/Shorewall-common/changelog.txt
+++ b/Shorewall-common/changelog.txt
@@ -2,6 +2,8 @@ Changes in 4.1.5
 
 1)  More ruleset optimization.
 
+2)  Make LOG_MARTIANS=Yes the default.
+
 Changes in 4.1.4
 
 1)  Fix do_test() to accept 0 and to use the same mask as
diff --git a/Shorewall-common/lib.config b/Shorewall-common/lib.config
index 3620b59b1..81dedf0b6 100644
--- a/Shorewall-common/lib.config
+++ b/Shorewall-common/lib.config
@@ -1916,7 +1916,7 @@ do_initialize() {
 		;;
 	esac
     else
-	LOG_MARTIANS=
+	LOG_MARTIANS=yes
     fi
 
     [ -n "${BLACKLIST_DISPOSITION:=DROP}" ]
diff --git a/Shorewall-common/releasenotes.txt b/Shorewall-common/releasenotes.txt
index bb99cac46..a0d9cda93 100644
--- a/Shorewall-common/releasenotes.txt
+++ b/Shorewall-common/releasenotes.txt
@@ -34,6 +34,15 @@ Migration Issues.
 	     REDIRECT-
 	     DNAT-
 
+4)  The default value for LOG_MARTIANS is now 'On'. Previously, the
+    default value was 'Keep'. You can either:
+
+    a) Accept the new default -- martians will be logged from all
+       interfaces except those with log_martians=0 in shorewall.conf.
+
+    b) Explicitly set LOG_MARTIANS=keep to maintain compatibility with
+       prior versions of Shorewall.
+
 Problems corrected in 4.1.5.
 
 None.
@@ -45,6 +54,10 @@ New Features in 4.1.5.
     the effect of reducing the average number of rules that each packet
     must traverse.
 
+4)  The default value for LOG_MARTIANS is now 'On'. Previously, the
+    default value was 'Keep'. The shorewall.conf file has also been 
+    updated to specify a value of 'On'.
+
 New Features in Shorewall 4.1.
 
 1)  Shorewall 4.1 contains experimental support for multiple Internet
diff --git a/Shorewall-common/shorewall.conf b/Shorewall-common/shorewall.conf
index 35739e52d..b7326961d 100644
--- a/Shorewall-common/shorewall.conf
+++ b/Shorewall-common/shorewall.conf
@@ -62,7 +62,7 @@ RFC1918_LOG_LEVEL=info
 
 SMURF_LOG_LEVEL=info
 
-LOG_MARTIANS=No
+LOG_MARTIANS=On
 
 ###############################################################################
 #	L O C A T I O N	  O F	F I L E S   A N D   D I R E C T O R I E S
diff --git a/Shorewall-perl/Shorewall/Config.pm b/Shorewall-perl/Shorewall/Config.pm
index 547560081..5c995b3dd 100644
--- a/Shorewall-perl/Shorewall/Config.pm
+++ b/Shorewall-perl/Shorewall/Config.pm
@@ -1799,7 +1799,7 @@ sub get_configuration( $ ) {
 
     check_trivalue ( 'IP_FORWARDING', 'on' );
     check_trivalue ( 'ROUTE_FILTER',  '' );
-    check_trivalue ( 'LOG_MARTIANS',  '' );
+    check_trivalue ( 'LOG_MARTIANS',  'on' );
 
     default 'STARTUP_LOG'   , '';