diff --git a/pdns/Dockerfile b/pdns/Dockerfile
index b8920bf..ae9777e 100644
--- a/pdns/Dockerfile
+++ b/pdns/Dockerfile
@@ -1,14 +1,14 @@
 FROM debian:jessie-backports
 MAINTAINER Fabio Rauber <fabiorauber@gmail.com>
 
-ENV PDNS_LAUNCH="gmysql" \
-    PDNS_GMYSQL_HOST="mysql" \
-    PDNS_GMYSQL_USER='$MYSQL_ENV_MYSQL_USER' \
-    PDNS_GMYSQL_DBNAME='$MYSQL_ENV_MYSQL_DATABASE' \
-    PDNS_GMYSQL_PASSWORD='$MYSQL_ENV_MYSQL_PASSWORD' \
-    PDNS_INCLUDE_DIR="/etc/powerdns/pdns.d" \
-    PDNS_GMYSQL_DNSSEC="yes" \
-    PDNS_EXPERIMENTAL_API_KEY=""
+ENV PDNSCONF_LAUNCH="gmysql" \
+    PDNSCONF_GMYSQL_HOST="mysql" \
+    PDNSCONF_GMYSQL_USER='$MYSQL_ENV_MYSQL_USER' \
+    PDNSCONF_GMYSQL_DBNAME='$MYSQL_ENV_MYSQL_DATABASE' \
+    PDNSCONF_GMYSQL_PASSWORD='$MYSQL_ENV_MYSQL_PASSWORD' \
+    PDNSCONF_INCLUDE_DIR="/etc/powerdns/pdns.d" \
+    PDNSCONF_GMYSQL_DNSSEC="yes" \
+    PDNSCONF_EXPERIMENTAL_API_KEY=""
 
 RUN apt-get update && \
     DEBIAN_FRONTEND=noninteractive apt-get install -q -y -t jessie-backports pdns-server pdns-backend-mysql mysql-client && \
diff --git a/pdns/start.sh b/pdns/start.sh
index 2b0e18a..cb73237 100644
--- a/pdns/start.sh
+++ b/pdns/start.sh
@@ -2,11 +2,11 @@
 
 mkdir -p /etc/powerdns/pdns.d
 
-PDNSVARS=`echo ${!PDNS_*}`
+PDNSVARS=`echo ${!PDNSCONF_*}`
 touch /etc/powerdns/pdns.conf
 
 for var in $PDNSVARS; do
-  varname=`echo ${var#"PDNS_"} | awk '{print tolower($0)}' | sed 's/_/-/g'`
+  varname=`echo ${var#"PDNSCONF_"} | awk '{print tolower($0)}' | sed 's/_/-/g'`
   value=`echo ${!var} | sed 's/^$\(.*\)/\1/'`
   if [ ! -z ${!value} ]; then
     echo "$varname=${!value}" >> /etc/powerdns/pdns.conf
@@ -15,7 +15,7 @@ for var in $PDNSVARS; do
   fi
 done
 
-if [ ! -z $PDNS_EXPERIMENTAL_API_KEY ]; then
+if [ ! -z $PDNSCONF_EXPERIMENTAL_API_KEY ]; then
   cat >/etc/powerdns/pdns.d/api.conf <<EOF
 experimental-json-interface=yes
 webserver=yes