diff --git a/helpers.js b/helpers.js
index fef1fc3..95abc90 100644
--- a/helpers.js
+++ b/helpers.js
@@ -174,11 +174,10 @@ module.exports.executeMount = (directory, version, storageType, location, exitCa
     } else if (storageType.toLowerCase() === 'siaprime') {
       args.push('-sp');
     }
-    if (os.platform() === 'linux') {
+    if ((os.platform() === 'linux') || (os.platform() === 'darwin')) {
       args.push('-o');
       args.push('big_writes');
-    }
-    if (os.platform() === 'win32') {
+    } else if (os.platform() === 'win32') {
       args.push('-hidden');
     }
     args.push(location);
@@ -454,9 +453,11 @@ module.exports.stopProcessByPID = pid => {
       windowsHide: true,
     };
 
-    const command = (os.platform() === 'win32') ? 'taskkill.exe' : '';
+    const command = (os.platform() === 'win32') ? 'taskkill.exe' : 'kill';
     const args = [];
-    args.push('/PID');
+    if (os.platform() === 'win32') {
+      args.push('/PID');
+    }
     args.push(pid);
 
     const process = new spawn(command, args, processOptions);