diff --git a/Shorewall-common/changelog.txt b/Shorewall-common/changelog.txt
index d378ebe2c..98e20d21a 100644
--- a/Shorewall-common/changelog.txt
+++ b/Shorewall-common/changelog.txt
@@ -14,7 +14,7 @@ Changes in 4.1.7
 
 7)  Fix priority mingling in tc filters.
 
-8)  Fix policy parsing.
+8)  Fix ":" parsing errors.
 
 Changes in 4.1.6
 
diff --git a/Shorewall-common/releasenotes.txt b/Shorewall-common/releasenotes.txt
index 691944735..fb8ca1a85 100644
--- a/Shorewall-common/releasenotes.txt
+++ b/Shorewall-common/releasenotes.txt
@@ -92,6 +92,9 @@ Problems corrected in Shorewall-perl 4.1.7.
 4)  A POLICY of ":" in /etc/shorewall/policy would produce Perl
     run-time errors.
 
+6)  An INTERFACE of ":" in /etc/shorewall/interfaces would produce Perl
+    run-time errors.
+
 New Features in 4.1.7.
 
 1)  If an interface fails when using balanced multi-ISP routing, the
diff --git a/Shorewall-perl/Shorewall/Zones.pm b/Shorewall-perl/Shorewall/Zones.pm
index 3542478ef..0603c2fdb 100644
--- a/Shorewall-perl/Shorewall/Zones.pm
+++ b/Shorewall-perl/Shorewall/Zones.pm
@@ -598,7 +598,7 @@ sub validate_interfaces_file( $ )
 	    $first_entry = 0;
 	}
 
-	my ($zone, $interface, $networks, $options ) = split_line 2, 4, 'interfaces file';
+	my ($zone, $originalinterface, $networks, $options ) = split_line 2, 4, 'interfaces file';
 	my $zoneref;
 	my $bridge = '';
 
@@ -614,9 +614,9 @@ sub validate_interfaces_file( $ )
 	$networks = '' if $networks eq '-';
 	$options  = '' if $options  eq '-';
 
-	( $interface, my ($port, $extra) ) = split /:/ , $interface, 3;
+	my ($interface, $port, $extra) = split /:/ , $originalinterface, 3;
 
-	fatal_error "Invalid INTERFACE (" . join (':', $interface, $port, $extra ) . ')' if defined $extra || ! $interface;
+	fatal_error "Invalid INTERFACE ($originalinterface)" if ! $interface || defined $extra;
 
 	fatal_error "Invalid Interface Name (+)" if $interface eq '+';