diff --git a/src/add-ons/kernel/file_systems/btrfs/Volume.cpp b/src/add-ons/kernel/file_systems/btrfs/Volume.cpp
index ed1bd624f1..71e148a687 100644
--- a/src/add-ons/kernel/file_systems/btrfs/Volume.cpp
+++ b/src/add-ons/kernel/file_systems/btrfs/Volume.cpp
@@ -266,7 +266,9 @@ Volume::Mount(const char* deviceName, uint32 flags)
 	}
 
 	fBlockSize = fSuperBlock.BlockSize();
+	fSectorSize = fSuperBlock.SectorSize();
 	TRACE("block size %" B_PRIu32 "\n", fBlockSize);
+	TRACE("sector size %" B_PRIu32 "\n", fSectorSize);
 
 	uint8* start = (uint8*)&fSuperBlock.system_chunk_array[0];
 	uint8* end = (uint8*)&fSuperBlock.system_chunk_array[2048];
diff --git a/src/add-ons/kernel/file_systems/btrfs/Volume.h b/src/add-ons/kernel/file_systems/btrfs/Volume.h
index e5b371fafe..65610871b3 100644
--- a/src/add-ons/kernel/file_systems/btrfs/Volume.h
+++ b/src/add-ons/kernel/file_systems/btrfs/Volume.h
@@ -41,7 +41,9 @@ public:
 			BTree*			FSTree() const { return fFSTree; }
 			BTree*			RootTree() const { return fRootTree; }
 
+			uint32				SectorSize() const { return fSectorSize; }
 			uint32				BlockSize() const { return fBlockSize; }
+
 			btrfs_super_block&	SuperBlock() { return fSuperBlock; }
 
 			status_t			LoadSuperBlock();
@@ -62,6 +64,7 @@ private:
 			char				fName[32];
 
 			uint32				fFlags;
+			uint32				fSectorSize;
 			uint32				fBlockSize;
 
 			void*				fBlockCache;
diff --git a/src/add-ons/kernel/file_systems/btrfs/btrfs.h b/src/add-ons/kernel/file_systems/btrfs/btrfs.h
index c0cf017660..2afe5a9860 100644
--- a/src/add-ons/kernel/file_systems/btrfs/btrfs.h
+++ b/src/add-ons/kernel/file_systems/btrfs/btrfs.h
@@ -178,6 +178,7 @@ struct btrfs_super_block {
 		// implemented in Volume.cpp
 	uint64 TotalSize() const { return B_LENDIAN_TO_HOST_INT64(total_size); }
 	uint32 BlockSize() const { return B_LENDIAN_TO_HOST_INT32(node_size); }
+	uint32 SectorSize() const { return B_LENDIAN_TO_HOST_INT32(sector_size); }
 	uint64 RootDirObjectID() const
 		{ return B_LENDIAN_TO_HOST_INT64(root_dir_object_id); }
 	uint64 Generation() const