diff --git a/highbeam b/highbeam
index a46a4e7..98b4be9 100755
--- a/highbeam
+++ b/highbeam
@@ -69,7 +69,6 @@ BW="${E}47m"
 # lines
 U="${E}4m"
 
-
 CONF_FILE=~/.highbeamrc
 CONF_LINE=""
 FLAGS="ig"
@@ -100,23 +99,23 @@ done
             exit 1
         }
     } 
-    for (( r=0; r<${#RULES[@]}; r++ ));
-    do  REGEX="$REGEX -e 's/\(${RULES[$r]}\)/${RULES[$(( $r + 1 ))]}\1${Z}/${FLAGS}'"
-        r=$(( $r + 1 ))
+    for (( rIndex=0; rIndex<${#RULES[@]}; rIndex++ ));
+    do  REGEX="$REGEX -e 's/\(${RULES[$r]}\)/${RULES[$(( $rIndex + 1 ))]}\1${Z}/${FLAGS}'"
+        rIndex=$(( $rIndex + 1 ))
     done    
 } || {
     # string fed rules
-    for (( r=0; r<${#CONF_LINE[@]}; r++ ));
-    do  REGEX="$REGEX -e 's/\(${CONF_LINE[$r]}\)/${CONF_LINE[$(( $r + 1 ))]}\1${Z}/${FLAGS}'"
-        r=$(( $r + 1 ))
+    for (( rIndex=0; rIndex<${#CONF_LINE[@]}; rIndex++ ));
+    do  REGEX="$REGEX -e 's/\(${CONF_LINE[$rIndex]}\)/${CONF_LINE[$(( $rIndex + 1 ))]}\1${Z}/${FLAGS}'"
+        rIndex=$(( $rIndex + 1 ))
     done
 }
 # env variable fed rules
 [[ -z "$HB_RULES" ]] || {
     CONF_ENV=( $( eval echo "$HB_RULES" ) )
-    for (( r=0; r<${#CONF_ENV[@]}; r++ ));
-    do  REGEX="$REGEX -e 's/\(${CONF_ENV[$r]}\)/${CONF_ENV[$(( $r + 1 ))]}\1${Z}/${FLAGS}'"
-        r=$(( $r + 1 ))
+    for (( rIndex=0; rIndex<${#CONF_ENV[@]}; rIndex++ ));
+    do  REGEX="$REGEX -e 's/\(${CONF_ENV[$rIndex]}\)/${CONF_ENV[$(( $rIndex + 1 ))]}\1${Z}/${FLAGS}'"
+        rIndex=$(( $rIndex + 1 ))
     done
 }
 #~ echo ${CONF_ENV[@]}