diff --git a/htdocs/hrm/class/skilldet.class.php b/htdocs/hrm/class/skilldet.class.php
index e3f2d011b85..1fb90b907db 100644
--- a/htdocs/hrm/class/skilldet.class.php
+++ b/htdocs/hrm/class/skilldet.class.php
@@ -377,13 +377,13 @@ class Skilldet extends CommonObject
 				if ($key == 't.rowid') {
 					$sqlwhere[] = $key.'='.$value;
 				} elseif (in_array($this->fields[$key]['type'], array('date', 'datetime', 'timestamp'))) {
-					$sqlwhere[] = $key.' = \''.$this->db->idate($value).'\'';
+					$sqlwhere[] = $key." = '".$this->db->idate($value)."'";
 				} elseif ($key == 'customsql') {
 					$sqlwhere[] = $value;
 				} elseif (strpos($value, '%') === false) {
-					$sqlwhere[] = $key.' IN ('.$this->db->sanitize($this->db->escape($value)).')';
+					$sqlwhere[] = $key." IN (".$this->db->sanitize($this->db->escape($value)).")";
 				} else {
-					$sqlwhere[] = $key.' LIKE \'%'.$this->db->escape($value).'%\'';
+					$sqlwhere[] = $key." LIKE '%".$this->db->escape($value)."%'";
 				}
 			}
 		}
@@ -395,7 +395,7 @@ class Skilldet extends CommonObject
 			$sql .= $this->db->order($sortfield, $sortorder);
 		}
 		if (!empty($limit)) {
-			$sql .= ' '.$this->db->plimit($limit, $offset);
+			$sql .= " ".$this->db->plimit($limit, $offset);
 		}
 
 		$resql = $this->db->query($sql);