diff --git a/.github/workflows/build_aca_image.yml b/.github/workflows/build_aca_image.yml
index 757b5efb..edbff388 100644
--- a/.github/workflows/build_aca_image.yml
+++ b/.github/workflows/build_aca_image.yml
@@ -1 +1,3 @@
 name: ACA Docker Image Build
+on:
+  workflow_dispatch