diff --git a/src/system/boot/loader/FileMapDisk.cpp b/src/system/boot/loader/FileMapDisk.cpp
index d4480faff4..89dc832b5c 100644
--- a/src/system/boot/loader/FileMapDisk.cpp
+++ b/src/system/boot/loader/FileMapDisk.cpp
@@ -26,6 +26,8 @@
 
 // constructor
 FileMapDisk::FileMapDisk()
+	:
+	fNode(NULL)
 {
 }