diff --git a/CHANGELOG.md b/CHANGELOG.md
index b3314ada..56e7eb9c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,10 @@
 CHANGELOG for 0.9.0 RC
 ======================
 
+2.4.2 (26.08.2019)
+-----
+- IS NULL and IS NOT NULL normalized across all database drivers
+
 2.4.1 (13.08.2019)
 -----
 - CS: @invisible renamed to @internal
diff --git a/src/Driver/Compiler.php b/src/Driver/Compiler.php
index bb82af38..1a634648 100644
--- a/src/Driver/Compiler.php
+++ b/src/Driver/Compiler.php
@@ -72,7 +72,7 @@ public function getPrefix(): string
      * @param string|FragmentInterface $identifier Identifier can include simple column operations
      *                                             and functions, having "." in it will
      *                                             automatically force table prefix to first value.
-     * @param bool                     $isTable Set to true to let quote method know that
+     * @param bool                     $isTable    Set to true to let quote method know that
      *                                             identified is related to table name.
      *
      * @return string
@@ -559,6 +559,15 @@ protected function prepareOperator($parameter, string $operator): string
             return $operator;
         }
 
+        if ($parameter->getType() == \PDO::PARAM_NULL) {
+            switch ($operator) {
+                case '=':
+                    return 'IS';
+                case '!=':
+                    return 'IS NOT';
+            }
+        }
+
         if ($operator != '=' || is_scalar($parameter->getValue())) {
             //Doing nothing for non equal operators
             return $operator;
diff --git a/src/Driver/MySQL/MySQLCompiler.php b/src/Driver/MySQL/MySQLCompiler.php
index 6b28b6dc..78e72193 100644
--- a/src/Driver/MySQL/MySQLCompiler.php
+++ b/src/Driver/MySQL/MySQLCompiler.php
@@ -10,7 +10,6 @@
 namespace Spiral\Database\Driver\MySQL;
 
 use Spiral\Database\Driver\Compiler as AbstractCompiler;
-use Spiral\Database\Injection\ParameterInterface;
 
 /**
  * MySQL syntax specific compiler.
@@ -41,31 +40,4 @@ protected function compileLimit(int $limit, int $offset): string
 
         return trim($statement);
     }
-
-    /**
-     * Resolve operator value based on value value. ;).
-     *
-     * @param mixed  $parameter
-     * @param string $operator
-     *
-     * @return string
-     */
-    protected function prepareOperator($parameter, string $operator): string
-    {
-        if (!$parameter instanceof ParameterInterface) {
-            //Probably fragment
-            return $operator;
-        }
-
-        if ($parameter->getType() == \PDO::PARAM_NULL) {
-            switch ($operator) {
-                case '=':
-                    return 'IS';
-                case '!=':
-                    return 'IS NOT';
-            }
-        }
-
-        return parent::prepareOperator($parameter, $operator);
-    }
 }
diff --git a/src/Driver/SQLite/SQLiteCompiler.php b/src/Driver/SQLite/SQLiteCompiler.php
index 73fa2764..74f2a86a 100644
--- a/src/Driver/SQLite/SQLiteCompiler.php
+++ b/src/Driver/SQLite/SQLiteCompiler.php
@@ -10,7 +10,6 @@
 namespace Spiral\Database\Driver\SQLite;
 
 use Spiral\Database\Driver\Compiler as AbstractCompiler;
-use Spiral\Database\Injection\ParameterInterface;
 
 /**
  * SQLite specific syntax compiler.
@@ -74,31 +73,4 @@ protected function compileLimit(int $limit, int $offset): string
 
         return trim($statement);
     }
-
-    /**
-     * Resolve operator value based on value value. ;).
-     *
-     * @param mixed  $parameter
-     * @param string $operator
-     *
-     * @return string
-     */
-    protected function prepareOperator($parameter, string $operator): string
-    {
-        if (!$parameter instanceof ParameterInterface) {
-            //Probably fragment
-            return $operator;
-        }
-
-        if ($parameter->getType() == \PDO::PARAM_NULL) {
-            switch ($operator) {
-                case '=':
-                    return 'IS';
-                case '!=':
-                    return 'IS NOT';
-            }
-        }
-
-        return parent::prepareOperator($parameter, $operator);
-    }
-}
+}
\ No newline at end of file
diff --git a/tests/Database/SelectQueryTest.php b/tests/Database/SelectQueryTest.php
index bda617a1..24c7359a 100644
--- a/tests/Database/SelectQueryTest.php
+++ b/tests/Database/SelectQueryTest.php
@@ -85,7 +85,7 @@ public function testSelectWithSimpleWhereNull()
         $select = $this->database->select()->distinct()->from(['users'])->where('name', null);
 
         $this->assertSameQuery(
-            "SELECT DISTINCT * FROM {users} WHERE {name} = ?",
+            "SELECT DISTINCT * FROM {users} WHERE {name} IS ?",
             $select
         );
     }
@@ -95,7 +95,7 @@ public function testSelectWithSimpleWhereNotNull()
         $select = $this->database->select()->distinct()->from(['users'])->where('name', '!=', null);
 
         $this->assertSameQuery(
-            "SELECT DISTINCT * FROM {users} WHERE {name} != ?",
+            "SELECT DISTINCT * FROM {users} WHERE {name} IS NOT ?",
             $select
         );
     }
@@ -2020,4 +2020,26 @@ public function testJoinQuery()
             $select
         );
     }
+
+    public function testDirectIsNull()
+    {
+        $select = $this->database->select()->from(['users'])
+            ->where('name', 'is', null);
+
+        $this->assertSameQuery(
+            "SELECT * FROM {users} WHERE {name} IS ?",
+            $select
+        );
+    }
+
+    public function testDirectIsNot()
+    {
+        $select = $this->database->select()->from(['users'])
+            ->where('name', 'is not', null);
+
+        $this->assertSameQuery(
+            "SELECT * FROM {users} WHERE {name} IS NOT ?",
+            $select
+        );
+    }
 }
\ No newline at end of file