diff --git a/src/add-ons/kernel/file_systems/udf/PartitionMap.cpp b/src/add-ons/kernel/file_systems/udf/PartitionMap.cpp
index b272aadc7a..a712c55a31 100644
--- a/src/add-ons/kernel/file_systems/udf/PartitionMap.cpp
+++ b/src/add-ons/kernel/file_systems/udf/PartitionMap.cpp
@@ -1,6 +1,6 @@
 #include "PartitionMap.h"
 
-using namespace UDF;
+using namespace Udf;
 
 /*! \brief Initializes the empty partition map.
 */
diff --git a/src/add-ons/kernel/file_systems/udf/PartitionMap.h b/src/add-ons/kernel/file_systems/udf/PartitionMap.h
index 1a4ad04793..afaa9ae9c7 100644
--- a/src/add-ons/kernel/file_systems/udf/PartitionMap.h
+++ b/src/add-ons/kernel/file_systems/udf/PartitionMap.h
@@ -16,7 +16,7 @@
 
 #include "SLList.h"
 
-namespace UDF {
+namespace Udf {
 
 class PartitionMap {
 public:
@@ -28,10 +28,10 @@ public:
 	
 	void dump();
 private:
-	SLList<UDF::udf_partition_descriptor> fList;
+	SLList<Udf::udf_partition_descriptor> fList;
 	uint32 fCount;
 };
 
-};	// namespace UDF
+};	// namespace Udf
 
 #endif	// _UDF_PARTITION_MAP_H