diff --git a/.github/workflows/docker-image.yml b/.github/workflows/docker-image.yml
index ec2e783..1c8757a 100644
--- a/.github/workflows/docker-image.yml
+++ b/.github/workflows/docker-image.yml
@@ -7,6 +7,7 @@ on:
     branches: [ master ]
   pull_request:
     branches: [ master ]
+  workflow_dispatch:
 
 env:
   IMAGE_NAME: corilus/nginx-echo-headers