diff --git a/Kernel/Ext2FileSystem.h b/Kernel/Ext2FileSystem.h
index ce2344ab82..eea6b17608 100644
--- a/Kernel/Ext2FileSystem.h
+++ b/Kernel/Ext2FileSystem.h
@@ -4,7 +4,6 @@
 #include "UnixTypes.h"
 #include <AK/Buffer.h>
 #include <AK/OwnPtr.h>
-#include <AK/Lock.h>
 #include "ext2_fs.h"
 
 struct ext2_group_desc;
@@ -48,7 +47,6 @@ private:
     const Ext2FS& fs() const;
     Ext2FSInode(Ext2FS&, unsigned index, const ext2_inode&);
 
-    Lock m_lock;
     Vector<unsigned> m_block_list;
     HashMap<String, unsigned> m_lookup_cache;
     ext2_inode m_raw_inode;
diff --git a/Kernel/FileSystem.h b/Kernel/FileSystem.h
index 789117d252..e58d4dd135 100644
--- a/Kernel/FileSystem.h
+++ b/Kernel/FileSystem.h
@@ -13,6 +13,7 @@
 #include <AK/AKString.h>
 #include <AK/Function.h>
 #include <AK/kstdio.h>
+#include <AK/Lock.h>
 
 static const dword mepoch = 476763780;
 
@@ -106,8 +107,10 @@ public:
 
 protected:
     Inode(FS& fs, unsigned index);
-
     void set_metadata_dirty(bool b) { m_metadata_dirty = b; }
+
+    Lock m_lock;
+
 private:
     FS& m_fs;
     unsigned m_index { 0 };