diff --git a/etc/main.conf b/etc/main.conf
index d197027..8c07051 100644
--- a/etc/main.conf
+++ b/etc/main.conf
@@ -4,8 +4,8 @@
 PREFIX="/bin:/sbin:/usr/bin:/usr/sbin:${PREFIX}"
 
 # Enable / Disable IPv4 and IPv6 support (yes/no)
-EnableIPv4=yes
-EnableIPv6=yes
+EnableIPv4="yes"
+EnableIPv6="yes"
 
 # Display detailed output while running script?
-EnableDetailedOutput=yes
\ No newline at end of file
+DisplayDetailedOutput="yes"
\ No newline at end of file
diff --git a/lib/iptables.inc b/lib/iptables.inc
index e6b37b3..b6fd39c 100644
--- a/lib/iptables.inc
+++ b/lib/iptables.inc
@@ -29,7 +29,7 @@ function iptables_rules_flush {
 		ipv6) VER_IPTABLES=${IP6TABLES} ; TABLE_NAMES=/proc/net/ip6_tables_names ;;
 		ipv4|*) VER_IPTABLES=${IPTABLES} ; TABLE_NAMES=/proc/net/ip_tables_names ;;
 	esac
-	${display_c} RED "Flushing ${IP_VERSION} rules..."
+	${display} RED "Flushing ${IP_VERSION} rules..."
 	${VER_IPTABLES} --flush &>/dev/null
 	${VER_IPTABLES} -F OUTPUT &>/dev/null
 	${VER_IPTABLES} -F PREROUTING &>/dev/null
@@ -67,7 +67,7 @@ function setup_iptables_chains {
 				IPVER="4" ;;
 	esac
 	# Create the actual chains
-	${display_c} GREEN "Setting up chains for ${IP_VERSION}..."
+	${display} GREEN "Setting up chains for ${IP_VERSION}..."
 	${VER_IPTABLES} -N ${InPreRules}
 	${VER_IPTABLES} -N ${OutPreRules}
 	${VER_IPTABLES} -N ${Trusted}