diff --git a/lib/processes.js b/lib/processes.js
index 4e35bd1..05d3f1b 100644
--- a/lib/processes.js
+++ b/lib/processes.js
@@ -324,15 +324,15 @@ function services(srv, callback) {
         }
         if (_windows) {
           try {
-            let wincommand = "Get-WmiObject Win32_Service ";
+            let wincommand = "Get-WmiObject Win32_Service";
             if (srvs[0] !== '*') {
-              wincommand += '-Filter "';
+              wincommand += ' -Filter "';
               for (let i = 0; i < srvs.length; i++) {
                 wincommand += `Name='${srvs[i]}' or `;
               }
               wincommand = `${wincommand.slice(0,-4)}"`;
             }
-            wincommand += '| fl *';
+            wincommand += ' | fl *';
             util.powerShell(wincommand).then((stdout, error) => {
               if (!error) {
                 let serviceSections = stdout.split(/\n\s*\n/);