diff --git a/lib/Skeleton/Pager/Sql/Condition.php b/lib/Skeleton/Pager/Sql/Condition.php
index d735fcb..d8459a5 100644
--- a/lib/Skeleton/Pager/Sql/Condition.php
+++ b/lib/Skeleton/Pager/Sql/Condition.php
@@ -258,7 +258,7 @@ public function equals(\Skeleton\Pager\Sql\Condition $condition) {
 	 * @return bool
 	 */
 	public function evaluate($value) {
-		switch ($this->comparison) {
+		switch (strtolower($this->comparison)) {
 			case '':
 			case '=':
 				foreach ($this->value as $value_item) {
@@ -303,6 +303,16 @@ public function evaluate($value) {
 					}
 				}
 				return false;
+			case 'not in':
+				if (in_array($value, $this->value) === false) {
+					return true;
+				}
+				return false;
+			case 'in':
+				if (in_array($value, $this->value) === true) {
+					return true;
+				}
+				return false;
 			default:
 				throw new \Exception("Unsupported comparison operator: '" . $this->comparison . "'");
 		}