diff --git a/Shorewall/Perl/Shorewall/Nat.pm b/Shorewall/Perl/Shorewall/Nat.pm
index ce7bace72..2f2754f66 100644
--- a/Shorewall/Perl/Shorewall/Nat.pm
+++ b/Shorewall/Perl/Shorewall/Nat.pm
@@ -402,7 +402,6 @@ sub do_one_nat( $$$$$ )
 	    push @addresses_to_add, ( $external , $fullinterface );
 	}
     }
-
 }
 
 #
diff --git a/Shorewall/shorewall b/Shorewall/shorewall
index bd4ec0025..5d45a0470 100755
--- a/Shorewall/shorewall
+++ b/Shorewall/shorewall
@@ -1615,6 +1615,8 @@ VERSION_FILE=$SHAREDIR/version
 REFRESHCHAINS=
 RECOVERING=
 export RECOVERING
+DEBUG=
+PURGE=
 
 for library in $LIBRARIES; do
     if [ -f $library ]; then
diff --git a/Shorewall6/shorewall6 b/Shorewall6/shorewall6
index 14374f0a0..51ef92a0c 100755
--- a/Shorewall6/shorewall6
+++ b/Shorewall6/shorewall6
@@ -1515,6 +1515,8 @@ LIBRARIES="$SHAREDIR/lib.base $SHAREDIR/lib.cli"
 VERSION_FILE=$SHAREDIR/version
 RECOVERING=
 export RECOVERING
+DEBUG=
+PURGE=
 
 for library in $LIBRARIES; do
     if [ -f $library ]; then