diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index a0764791..ba078b17 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -4,6 +4,7 @@ on:
   push:
     branches:
       - master
+      - windows-mmap-1
     paths: ['.github/workflows/**', '**/Makefile', '**/*.c']
   pull_request:
     types: [opened, synchronize, reopened]