diff --git a/highbeam b/highbeam
index 0b2a88e..2dcf59b 100755
--- a/highbeam
+++ b/highbeam
@@ -18,6 +18,10 @@ RULES=(
 Color variables:  $R $G $B $Y $M $C $W $BLACK
 Modify to bright version by prefixing with $H  (e.g. $H$G)
 Background colors: $BGR $BGG $BGB $BGY $BGC $BGM $BGW 
+
+Usage:   highbeam [-h] [-f config]
+   -h    Help
+   -f    Define config file (default ~/.highbeamrc)
 '
 
 }
@@ -48,9 +52,12 @@ BGM="${E}45m"
 BGC="${E}46m"
 BGW="${E}47m"
 
+CONF_FILE=~/.highbeamrc
+[[ "$1" = "-f" ]] && CONF_FILE=$2
+
 # user rules:
-[[ -e ~/.highbeamrc ]] && . ~/.highbeamrc || echo You may have wrong construction in .highbeamrc >&2 || exit
-[[ -e ~/.highbeamrc ]] || {
+[[ -e "${CONF_FILE}" ]] && . "${CONF_FILE}" || echo You may have wrong construction in "${CONF_FILE}" >&2 || exit
+[[ -e "${CONF_FILE}" ]] || {
 # list of rules
 RULES=( 
     "[0-9]"      "$C" # Show numbers with Cyan color. NOTE: since the colors are represented with numbers, having this later in the rules will break coloring!