diff --git a/README.md b/README.md
index cf572f1..ee06db5 100644
--- a/README.md
+++ b/README.md
@@ -117,6 +117,7 @@ You can read [the article](https://medium.com/@BtcpayServer/hosting-btcpay-serve
 * `BTCPAYGEN_CRYPTON`: N'th supported crypto currency where N is 9 at maximum. (eg. `btc`, `ltc`. Default: `(empty)`)
 * `BTCPAYGEN_REVERSEPROXY`: Specify reverse proxy to use; NGinx has HTTPS support. (eg. `nginx`, `traefik`,  `(empty)`. Default: `nginx`)
 * `BTCPAYGEN_LIGHTNING`: Lightning network implementation to use (eg. `clightning`, `(empty)`)
+* `BTCPAYGEN_DATABASE`: Database Engine to use(eg. `postgres`, `mysql`, `sqlite`. Default: `postgres`)
 * `BTCPAYGEN_SUBNAME`: The subname of the generated docker-compose file, where the full name is `Generated/docker-compose.SUBNAME.yml` (Default: `generated`)
 * `BTCPAYGEN_ADDITIONAL_FRAGMENTS`: Semicolon-separated list of additional fragments you want to use (eg. `opt-save-storage`)
 * `LETSENCRYPT_EMAIL`: An email will be sent to this address if certificate expires and fails to renew automatically (eg. `me@example.com`)
diff --git a/btcpay-setup.sh b/btcpay-setup.sh
index 776faae..ea11ed0 100755
--- a/btcpay-setup.sh
+++ b/btcpay-setup.sh
@@ -57,6 +57,7 @@ Environment variables:
     BTCPAYGEN_CRYPTON: N th supported crypto currency where N is maximum at maximum 9. (Default: none)
     BTCPAYGEN_REVERSEPROXY: Whether to use or not a reverse proxy. NGinx setup HTTPS for you. (eg. nginx, traefik, none. Default: nginx)
     BTCPAYGEN_LIGHTNING: Lightning network implementation to use (eg. clightning, lnd, none)
+    BTCPAYGEN_DATABASE: Database Engine to use(eg. postgres, mysql, sqlite. Default: postgres)
     BTCPAYGEN_ADDITIONAL_FRAGMENTS: Semi colon separated list of additional fragments you want to use (eg. opt-save-storage)
     ACME_CA_URI: The API endpoint to ask for HTTPS certificate (default: https://acme-v01.api.letsencrypt.org/directory)
     BTCPAY_HOST_SSHKEYFILE: Optional, SSH private key that BTCPay can use to connect to this VM's SSH server. This key will be copied on BTCPay's data directory
@@ -85,6 +86,7 @@ fi
 : "${BTCPAYGEN_CRYPTO1:=btc}"
 : "${BTCPAYGEN_REVERSEPROXY:=nginx}"
 : "${BTCPAYGEN_LIGHTNING:=none}"
+: "${BTCPAYGEN_DATABASE:=postgres}"
 : "${ACME_CA_URI:=https://acme-v01.api.letsencrypt.org/directory}"
 
 OLD_BTCPAY_DOCKER_COMPOSE=$BTCPAY_DOCKER_COMPOSE
@@ -143,6 +145,7 @@ BTCPAYGEN_CRYPTO8:$BTCPAYGEN_CRYPTO8
 BTCPAYGEN_CRYPTO9:$BTCPAYGEN_CRYPTO9
 BTCPAYGEN_REVERSEPROXY:$BTCPAYGEN_REVERSEPROXY
 BTCPAYGEN_LIGHTNING:$BTCPAYGEN_LIGHTNING
+BTCPAYGEN_DATABASE:$BTCPAYGEN_DATABASE
 BTCPAYGEN_ADDITIONAL_FRAGMENTS:$BTCPAYGEN_ADDITIONAL_FRAGMENTS
 BTCPAY_IMAGE:$BTCPAY_IMAGE
 ACME_CA_URI:$ACME_CA_URI
@@ -186,6 +189,7 @@ export BTCPAYGEN_CRYPTO7=\"$BTCPAYGEN_CRYPTO7\"
 export BTCPAYGEN_CRYPTO8=\"$BTCPAYGEN_CRYPTO8\"
 export BTCPAYGEN_CRYPTO9=\"$BTCPAYGEN_CRYPTO9\"
 export BTCPAYGEN_LIGHTNING=\"$BTCPAYGEN_LIGHTNING\"
+export BTCPAYGEN_DATABASE=\"$BTCPAYGEN_DATABASE\"
 export BTCPAYGEN_REVERSEPROXY=\"$BTCPAYGEN_REVERSEPROXY\"
 export BTCPAYGEN_ADDITIONAL_FRAGMENTS=\"$BTCPAYGEN_ADDITIONAL_FRAGMENTS\"
 export BTCPAY_DOCKER_COMPOSE=\"$BTCPAY_DOCKER_COMPOSE\"
diff --git a/build.ps1 b/build.ps1
index 2bafc9e..0b1baed 100755
--- a/build.ps1
+++ b/build.ps1
@@ -22,6 +22,7 @@ docker run -v "$(Get-Location)\Generated:/app/Generated" `
            -e "BTCPAYGEN_REVERSEPROXY=$BTCPAYGEN_REVERSEPROXY" `
            -e "BTCPAYGEN_ADDITIONAL_FRAGMENTS=$BTCPAYGEN_ADDITIONAL_FRAGMENTS" `
            -e "BTCPAYGEN_LIGHTNING=$BTCPAYGEN_LIGHTNING" `
+           -e "BTCPAYGEN_DATABASE=$BTCPAYGEN_DATABASE" `
            -e "BTCPAYGEN_SUBNAME=$BTCPAYGEN_SUBNAME" `
            --rm $BTCPAYGEN_DOCKER_IMAGE
 
diff --git a/build.sh b/build.sh
index 09f9a4a..dcb3588 100755
--- a/build.sh
+++ b/build.sh
@@ -23,6 +23,7 @@ docker run -v "$(pwd)/Generated:/app/Generated" \
            -e "BTCPAYGEN_REVERSEPROXY=$BTCPAYGEN_REVERSEPROXY" \
            -e "BTCPAYGEN_ADDITIONAL_FRAGMENTS=$BTCPAYGEN_ADDITIONAL_FRAGMENTS" \
            -e "BTCPAYGEN_LIGHTNING=$BTCPAYGEN_LIGHTNING" \
+           -e "BTCPAYGEN_DATABASE=$BTCPAYGEN_DATABASE" \
            -e "BTCPAYGEN_SUBNAME=$BTCPAYGEN_SUBNAME" \
            --rm $BTCPAYGEN_DOCKER_IMAGE
 
diff --git a/docker-compose-generator/src/Properties/launchSettings.json b/docker-compose-generator/src/Properties/launchSettings.json
index b29a0ab..eebb423 100644
--- a/docker-compose-generator/src/Properties/launchSettings.json
+++ b/docker-compose-generator/src/Properties/launchSettings.json
@@ -9,7 +9,8 @@
         "BTCPAYGEN_CRYPTO3": "btg",
         "BTCPAYGEN_CRYPTO2": "ltc",
         "BTCPAYGEN_CRYPTO1": "btc",
-        "BTCPAYGEN_REVERSEPROXY": "nginx"
+        "BTCPAYGEN_REVERSEPROXY": "nginx",
+        "BTCPAYGEN_DATABASE": "postgres"
       }
     }
   }