diff --git a/toys/createindex b/toys/createindex
index 5714bea..48a735f 100755
--- a/toys/createindex
+++ b/toys/createindex
@@ -452,7 +452,10 @@ do
 		expr2='(,|$)'
 		if ! [[ $channelss =~ $expr1"$channels"$expr2 ]]
 		then
-			if [ -n "$channelss" ]			\
+		 	if [[ -n "$channels" ]]
+			then
+				:
+			elif [ -n "$channelss" ]		\
 			&& (( channels < ${channelss%%,*} ))
 			then
 				channelss="$channels,$channelss"
@@ -462,7 +465,10 @@ do
 		fi
 		if ! [[ $rates =~ $expr1"$rate"$expr2 ]]
 		then
-			if [ -n "$rates" ]			\
+			if [[ -n "$rate" ]]
+			then
+				:
+			elif [ -n "$rates" ]			\
 			&& (( rate < ${rates%%,*} ))
 			then
 				rates="$rate,$rates"
@@ -472,7 +478,10 @@ do
 		fi
 		if [ -n "$depth" ] && ! [[ $depths =~ $expr1"$depth"$expr2 ]]
 		then
-			if [ -n "$depths" ]			\
+		 	if [[ -n "$depth" ]]
+			then
+				:
+			elif [ -n "$depths" ]			\
 			&& (( depth < ${depths%%,*} ))
 			then
 				depths="$depth,$depths"