diff --git a/build.ps1 b/build.ps1
old mode 100644
new mode 100755
diff --git a/common.ps1 b/common.ps1
old mode 100644
new mode 100755
diff --git a/run.ps1 b/run.ps1
old mode 100644
new mode 100755
diff --git a/run_dosbox.ps1 b/run_dosbox.ps1
old mode 100644
new mode 100755