diff --git a/lib/helpers.php b/lib/helpers.php
index 401890470..520c464e2 100755
--- a/lib/helpers.php
+++ b/lib/helpers.php
@@ -46,8 +46,7 @@ function database()
  */
 function prepare($parameter)
 {
-    if (!empty($parameter))
-        return database()->prepare($parameter);
+    return database()->prepare($parameter);
 }
 
 /**
diff --git a/src/Database.php b/src/Database.php
index 2a453e4c5..5cf7bb805 100755
--- a/src/Database.php
+++ b/src/Database.php
@@ -390,9 +390,7 @@ class Database extends Util\Singleton
      */
     public function prepare($parameter)
     {
-        if (!empty($parameter))
-            return $this->getPDO()->quote($parameter);
-       
+        return $this->getPDO()->quote($parameter);
     }
 
     /**