diff --git a/.github/workflows/cmake-tier1.yml b/.github/workflows/cmake-tier1.yml
index 93596d8..a5e84b1 100644
--- a/.github/workflows/cmake-tier1.yml
+++ b/.github/workflows/cmake-tier1.yml
@@ -1,13 +1,20 @@
 name: Build (Tier 1 platforms)
 
-# Triggered automatically on each push to main
-on: [push]
+on:
+  # Triggers the workflow on push or pull request events but only for the main branch
+  push:
+    branches: [ main ]
+  pull_request:
+    branches: [ main ]
+  # Allows you to run this workflow manually from the Actions tab
+  workflow_dispatch:
+
 
 env:
   # Customize the CMake build type here (Release, Debug, RelWithDebInfo, etc.)
   BUILD_TYPE: RelWithDebInfo
   SMARTMONTOOLS_INSTALLER: smartmontools-7.2-1.win32-setup.exe
-  SMARTMONTOOLS_URL: https://nav.dl.sourceforge.net/project/smartmontools/smartmontools/7.2/$SMARTMONTOOLS_INSTALLER
+  SMARTMONTOOLS_URL: https://nav.dl.sourceforge.net/project/smartmontools/smartmontools/7.2/smartmontools-7.2-1.win32-setup.exe
 
 
 jobs: