diff --git a/container/HybridIterator.h b/container/HybridIterator.h
index 79f0485f..3dbd47a8 100644
--- a/container/HybridIterator.h
+++ b/container/HybridIterator.h
@@ -1,5 +1,5 @@
-#ifndef HYBRIDITERATOR_H_
-#define HYBRIDITERATOR_H_
+#ifndef FRAMEWORK_CONTAINER_HYBRIDITERATOR_H_
+#define FRAMEWORK_CONTAINER_HYBRIDITERATOR_H_
 
 #include <framework/container/ArrayList.h>
 #include <framework/container/SinglyLinkedList.h>
@@ -24,16 +24,16 @@ public:
 
 	HybridIterator(typename ArrayList<T, count_t>::Iterator start,
 			typename ArrayList<T, count_t>::Iterator end) :
-			ArrayList<T, count_t>::Iterator(start), value(start.value), linked(
-					false), end(end.value) {
+			ArrayList<T, count_t>::Iterator(start), value(start.value),
+			linked(false), end(end.value) {
 		if (value == this->end) {
 			value = NULL;
 		}
 	}
 
 	HybridIterator(T *firstElement, T *lastElement) :
-			ArrayList<T, count_t>::Iterator(firstElement), value(firstElement), linked(
-					false), end(++lastElement) {
+			ArrayList<T, count_t>::Iterator(firstElement), value(firstElement),
+			linked(false), end(++lastElement) {
 		if (value == end) {
 			value = NULL;
 		}
@@ -42,17 +42,17 @@ public:
 	HybridIterator& operator++() {
 		if (linked) {
 			LinkedElement<T>::Iterator::operator++();
-			if (LinkedElement<T>::Iterator::value != NULL) {
+			if (LinkedElement<T>::Iterator::value != nullptr) {
 				value = LinkedElement<T>::Iterator::value->value;
 			} else {
-				value = NULL;
+				value = nullptr;
 			}
 		} else {
 			ArrayList<T, count_t>::Iterator::operator++();
 			value = ArrayList<T, count_t>::Iterator::value;
 
 			if (value == end) {
-				value = NULL;
+				value = nullptr;
 			}
 		}
 		return *this;