diff --git a/server_weather.sh b/server_weather.sh
index 2998292..dce019a 100755
--- a/server_weather.sh
+++ b/server_weather.sh
@@ -30,7 +30,7 @@ get_weather() {
     echo "$res"
 }
 
-while getopts "c:s:z:" arg; do
+while getopts "c:s:z:" opt; do
     case "$opt" in
         'c' )
             COORDS="$OPTARG"