diff --git a/compose.yml b/compose.yml
index d1d6d59..e2100fa 100644
--- a/compose.yml
+++ b/compose.yml
@@ -43,6 +43,7 @@ configs:
   custom_entrypoint:
     name: ${STACK_NAME}_custom_entrypoint_${CUSTOM_ENTRYPOINT_VERSION}
     file: entrypoint.sh.tmpl
+    template_driver: golang
 
 secrets:
   admin_password:
diff --git a/entrypoint.sh.tmpl b/entrypoint.sh.tmpl
index ca00200..ac29a1a 100644
--- a/entrypoint.sh.tmpl
+++ b/entrypoint.sh.tmpl
@@ -11,15 +11,12 @@ file_env() {
       echo >&2 "error: both $var and $fileVar are set (but are exclusive)"
       exit 1
    fi
-
    local val="$def"
-
    if [ "${!var:-}" ]; then
       val="${!var}"
    elif [ "${!fileVar:-}" ]; then
       val="$(< "${!fileVar}")"
    fi
-
    export "$var"="$val"
    unset "$fileVar"
 }
@@ -27,9 +24,9 @@ file_env() {
 file_env "PASSWORD"
 
 {{ if eq (env "OIDC_ENABLED") "1" }}
-echo "auth-openid=1" >> /etc/rstudio/rserver.conf
-echo "auth-openid-issuer=${OIDC_ISSUER_URL}" >> /etc/rstudio/rserver.conf
-echo "auth-openid-base-uri=https://${DOMAIN}" >> /etc/rstudio/rserver.conf
+echo 'auth-openid=1' >> /etc/rstudio/rserver.conf
+echo 'auth-openid-issuer={{ env "OIDC_ISSUER_URL"}}' >> /etc/rstudio/rserver.conf
+echo 'auth-openid-base-uri=https://{{ env "DOMAIN" }}' >> /etc/rstudio/rserver.conf
 {{ end }}
 
 exec "$@"