diff --git a/src/system/boot/loader/file_systems/fat/Volume.cpp b/src/system/boot/loader/file_systems/fat/Volume.cpp
index 83ea095641..fae51c9ca9 100644
--- a/src/system/boot/loader/file_systems/fat/Volume.cpp
+++ b/src/system/boot/loader/file_systems/fat/Volume.cpp
@@ -26,6 +26,7 @@ using namespace FATFS;
 
 Volume::Volume(boot::Partition *partition)
 	:
+	fCachedBlock(NULL),
 	fRoot(NULL)
 {
 	TRACE(("%s()\n", __FUNCTION__));