diff --git a/src/QueryObject.php b/src/QueryObject.php
index 8a79fa0..f4f0daf 100644
--- a/src/QueryObject.php
+++ b/src/QueryObject.php
@@ -208,12 +208,10 @@ function($_column) use ($qb, $value, $mode) {
 
 					switch ($mode) {
 						case QueryObjectByMode::STRICT:
-							$value = "$value";
 							$condition = "$_column = :$paramName";
 							break;
 
 						case QueryObjectByMode::NOT_EQUAL:
-							$value = "$value";
 							$condition = "$_column != :$paramName";
 							break;
 
@@ -256,22 +254,18 @@ function($_column) use ($qb, $value, $mode) {
 							break;
 
 						case QueryObjectByMode::GREATER:
-							$value = "$value";
 							$condition = "$_column > :$paramName";
 							break;
 
 						case QueryObjectByMode::GREATER_OR_EQUAL:
-							$value = "$value";
 							$condition = "$_column >= :$paramName";
 							break;
 
 						case QueryObjectByMode::LESS:
-							$value = "$value";
 							$condition = "$_column < :$paramName";
 							break;
 
 						case QueryObjectByMode::LESS_OR_EQUAL:
-							$value = "$value";
 							$condition = "$_column <= :$paramName";
 							break;