diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 5a213c9..2618f82 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -4,6 +4,7 @@ name: Doxygen Action
 
 # Trigger workflow only on pushed to master branch:
 on:
+  workflow_dispatch:
   push:
     branches: [ master ]