diff --git a/Kernel/FileSystem/FATFS/FileSystem.h b/Kernel/FileSystem/FATFS/FileSystem.h
index 29c568153af..33c8e928aa6 100644
--- a/Kernel/FileSystem/FATFS/FileSystem.h
+++ b/Kernel/FileSystem/FATFS/FileSystem.h
@@ -45,9 +45,9 @@ private:
 
     BlockBasedFileSystem::BlockIndex first_block_of_cluster(u32 cluster) const;
 
-    OwnPtr<KBuffer> m_boot_record;
-    LockRefPtr<FATInode> m_root_inode;
-    u32 m_first_data_sector;
+    OwnPtr<KBuffer> m_boot_record {};
+    LockRefPtr<FATInode> m_root_inode {};
+    u32 m_first_data_sector { 0 };
 };
 
 }