diff --git a/includes/common.php b/includes/common.php
index 8f6d48cbd2..14a3ba623e 100644
--- a/includes/common.php
+++ b/includes/common.php
@@ -90,23 +90,23 @@ function external_exec($command)
 
     if ($debug && !$vdebug) {
         $patterns = [
-            '/-c\' \'[\S]+/',
-            '/-u\' \'[\S]+/',
-            '/-U\' \'[\S]+/',
-            '/-A\' \'[\S]+/',
-            '/-X\' \'[\S]+/',
-            '/-P\' \'[\S]+/',
-            '/-H\' \'[\S]+/',
+            '/-c\' \'[\S]+\'/',
+            '/-u\' \'[\S]+\'/',
+            '/-U\' \'[\S]+\'/',
+            '/-A\' \'[\S]+\'/',
+            '/-X\' \'[\S]+\'/',
+            '/-P\' \'[\S]+\'/',
+            '/-H\' \'[\S]+\'/',
             '/(udp|udp6|tcp|tcp6):([^:]+):([\d]+)/',
         ];
         $replacements = [
-            '-c\' \'COMMUNITY',
-            '-u\' \'USER',
-            '-u\' \'USER',
-            '-A\' \'PASSWORD',
-            '-X\' \'PASSWORD',
-            '-P\' \'PASSWORD',
-            '-H\' \'HOSTNAME',
+            '-c\' \'COMMUNITY\'',
+            '-u\' \'USER\'',
+            '-u\' \'USER\'',
+            '-A\' \'PASSWORD\'',
+            '-X\' \'PASSWORD\'',
+            '-P\' \'PASSWORD\'',
+            '-H\' \'HOSTNAME\'',
             '\1:HOSTNAME:\3',
         ];