diff --git a/1dlife b/1dlife
index 9d96d10..fc43f60 100755
--- a/1dlife
+++ b/1dlife
@@ -18,15 +18,15 @@ state="${state//[^0]/1}"
 slen=$((${#state} - 1)) # length + 4 (temporary padding) - 5
 
 # complete rule mapping
-declare -ar values=(0 0 0 1 0 0 0 1 0 1 1 1 0 1 1 0 \
-                    0 1 1 1 0 1 1 0 1 1 1 0 1 0 0 1)
+declare -ar rule=(0 0 0 1 0 0 0 1 0 1 1 1 0 1 1 0 \
+                  0 1 1 1 0 1 1 0 1 1 1 0 1 0 0 1)
   
 for ((i=0; i<ITERS; ++i)); do
   state="00${state}00" # pad the current state from both sides
   newstate=''
   for ((k=0; k<slen; ++k)); do
     vidx="${state:k:5}"
-    newstate="${newstate}${values[$((2#$vidx))]}"    
+    newstate="${newstate}${rule[$((2#$vidx))]}"    
   done
   state="$newstate"
   newstate="${newstate//0/ }"