Only allow certain countries traffic access specific page

I have a website that I wish to block users from certain country to access certain pages on the site, by using the --with-http_geoip_module.

Here is my config:
http {
include /etc/nginx/mime.types;
default_type application/octet-stream;

log_format main '$remote_addr - $remote_user [$time_local] "$request" '
'$status $body_bytes_sent "$http_referer" '
'"$http_user_agent" "$http_x_forwarded_for"';

access_log /var/log/nginx/access.log main;

geoip_country /usr/share/GeoIP/GeoIP.dat; # the country IP database

map $geoip_country_code $allowed_country {
default 0;
US 1;
UK 1;
HK 1;

}
sendfile on;
#tcp_nopush on;

#keepalive_timeout 0;
keepalive_timeout 65;

#gzip on;

index index.html index.htm;

# Load modular configuration files from the /etc/nginx/conf.d directory.
# See http://nginx.org/en/docs/ngx_core_module.html#include
# for more information.
include /etc/nginx/conf.d/*.conf;

server {
listen 80 default_server;
server_name localhost;
root /var/www/html;

include /etc/nginx/default.d/*.conf;

location / {
index index.php index.cgi index.pl index.html index.xhtml index.htm index.shtml;
try_files $uri $uri/ /index.php?$args;
}

# redirect server error pages to the static page /40x.html
#
error_page 404 /404.html;
location = /40x.html {
}

# redirect server error pages to the static page /50x.html
#
error_page 500 502 503 504 /50x.html;
location = /50x.html {
}

#ban specifc country
location = /specific {
if ($allowed_country = 0) {

return 301 ;
}
}


location ~ \.php$ {
### SET GEOIP Variables ###
fastcgi_param GEOIP_COUNTRY_CODE $geoip_country_code;
fastcgi_param GEOIP_COUNTRY_CODE3 $geoip_country_code3;
fastcgi_param GEOIP_COUNTRY_NAME $geoip_country_name;

fastcgi_split_path_info ^(.+?\.php)(/.*)$;
if (!-f $document_root$fastcgi_script_name) {
return 404;

}
try_files $uri $uri/ /index.php?$args;
fastcgi_pass unix:/run/php-fpm/php-fpm.sock;
fastcgi_index index.php;
fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
include fastcgi.conf;
include conf/site.conf;
}

}
}

The problem once I did it, it blocked all the traffic access /specific page including the US,UK and HK that I white-listed. What did I done wrong?

Thanks