diff --git a/.github/workflows/update_primary_nginx.yml b/.github/workflows/update_primary_nginx.yml
index eafc37c..0cdefce 100644
--- a/.github/workflows/update_primary_nginx.yml
+++ b/.github/workflows/update_primary_nginx.yml
@@ -20,12 +20,11 @@ jobs:
         run: env
 
       #Doesn't work properly, envsubst replaces all instances of $variable and ${variable}, but we want to keep e.g., $host as nginx variables
-      #- name: Create temporary nginx config file
-      #  run: envsubst  < ./nginx_template.txt > temp_default.conf
-      # Maybe look at https://www.baeldung.com/linux/envsubst-command to get an idea
+      - name: Create temporary nginx config file
+        run: envsubst '${PROD_PORT_PREFIX} ${GATEWAY_POSTFIX} ${DEV_PORT_PREFIX} ${STAG_PORT_PREFIX}' < ./nginx_template.txt > ./temp_default.conf
       
       - name: Copy temporary file to correct place 
-        run: sudo cp ./nginx/nginx.conf /etc/nginx/conf.d/nginx_securefit.conf
+        run: sudo cp ./temp_default.conf /etc/nginx/conf.d/nginx_securefit.conf
 
       - name: Show nginx file
         run: cat /etc/nginx/conf.d/nginx_securefit.conf