diff --git a/src/model/PhpClass.php b/src/model/PhpClass.php
index efc0e21..49f8ace 100644
--- a/src/model/PhpClass.php
+++ b/src/model/PhpClass.php
@@ -66,7 +66,16 @@ public static function fromReflection(\ReflectionClass $ref) {
 
 		// constants
 		// TODO: https://github.com/gossi/php-code-generator/issues/19
-		$class->setConstants($ref->getConstants());
+		foreach ($ref->getConstants() as $name => $value) {
+			$const = new PhpConstant($name);
+
+			if (is_string($value)) {
+				$const->setValue($value);
+			} else {
+				$const->setExpression($value);
+			}
+			$class->setConstant($const);
+		}
 
 		return $class;
 	}
diff --git a/src/parser/visitor/AbstractPhpStructVisitor.php b/src/parser/visitor/AbstractPhpStructVisitor.php
index 98c2706..4a122c3 100644
--- a/src/parser/visitor/AbstractPhpStructVisitor.php
+++ b/src/parser/visitor/AbstractPhpStructVisitor.php
@@ -27,6 +27,9 @@
 use PhpParser\Node\Stmt\UseUse;
 use PhpParser\NodeVisitorAbstract;
 use PhpParser\PrettyPrinter\Standard;
+use PhpParser\Node\Scalar\LNumber;
+use PhpParser\Node\Scalar\DNumber;
+use PhpParser\Node\Scalar\MagicConst;
 
 abstract class AbstractPhpStructVisitor extends NodeVisitorAbstract {
 
@@ -122,9 +125,8 @@ protected function visitConstants(ClassConst $node) {
 	}
 
 	protected function visitConstant(Const_ $node, Doc $doc = null) {
-		$const = new PhpConstant($node->name, $this->getValue($node));
-		$const->setValue($this->getValue($node->value));
-
+		$const = new PhpConstant($node->name);
+		$this->setDefault($const, $node->value);
 		$this->parseMemberDocblock($const, $doc);
 
 		$this->struct->setConstant($const);
@@ -244,7 +246,7 @@ private function parseMemberDocblock($member, Doc $doc = null) {
 		}
 	}
 
-	private function setDefault($obj, $default) {
+	private function setDefault($obj, Node $default) {
 		if ($default instanceof String_) {
 			$obj->setValue($this->getValue($default));
 		} else {
@@ -268,9 +270,13 @@ private function getValue(Node $node) {
 			return $const;
 		}
 
-		if ($node instanceof String_) {
+		if ($node instanceof String_ || $node instanceof LNumber || $node instanceof DNumber) {
 			return $node->value;
 		}
+
+		if ($node instanceof MagicConst) {
+			return $node->getName();
+		}
 	}
 
 	/**
diff --git a/tests/fixture/ClassWithConstants.php b/tests/fixture/ClassWithConstants.php
index 4f26b25..20b6980 100644
--- a/tests/fixture/ClassWithConstants.php
+++ b/tests/fixture/ClassWithConstants.php
@@ -4,5 +4,6 @@
 class ClassWithConstants {
 
 	const FOO = 'bar';
-	
+
+	const NMBR = 300;
 }
\ No newline at end of file
diff --git a/tests/model/PhpClassTest.php b/tests/model/PhpClassTest.php
index 699dd63..da3e41e 100644
--- a/tests/model/PhpClassTest.php
+++ b/tests/model/PhpClassTest.php
@@ -85,6 +85,7 @@ public function testFromReflection() {
 
 		$class = new PhpClass('gossi\codegen\tests\fixture\ClassWithConstants');
 		$class->setConstant('FOO', 'bar');
+		$class->setConstant(PhpConstant::create('NMBR')->setExpression(300));
 		$this->assertEquals($class, PhpClass::fromReflection(new \ReflectionClass('gossi\codegen\tests\fixture\ClassWithConstants')));
 	}
 
@@ -332,6 +333,8 @@ public function testFromFileWithConstants() {
 		$class = PhpClass::fromFile(__DIR__ . '/../fixture/ClassWithConstants.php');
 
 		$this->assertTrue($class->hasConstant('FOO'));
+		$this->assertTrue($class->hasConstant('NMBR'));
+		$this->assertEquals(300, $class->getConstant('NMBR')->getExpression());
 	}
 
 	public function testFromFileWithTraits() {