diff --git a/docker-compose.yml b/docker-compose.yml
index 0ea37a4c95..6fcbe4d1f3 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -55,6 +55,9 @@ services:
     # The init directive ensures the command runs with a PID > 1, so Ctrl+C works correctly.
     init: true
 
+    extra_hosts:
+      - localhost:host-gateway
+
   ##
   # The MySQL container.
   ##
@@ -98,6 +101,9 @@ services:
     # The init directive ensures the command runs with a PID > 1, so Ctrl+C works correctly.
     init: true
 
+    extra_hosts:
+      - localhost:host-gateway
+
 volumes:
   # So that sites aren't wiped every time containers are restarted, MySQL uses a persistent volume.
   mysql: {}