diff --git a/reactos/base/shell/explorer/shell/fatfs.cpp b/reactos/base/shell/explorer/shell/fatfs.cpp
index a667e2bedd5..5cd237280bf 100644
--- a/reactos/base/shell/explorer/shell/fatfs.cpp
+++ b/reactos/base/shell/explorer/shell/fatfs.cpp
@@ -30,6 +30,7 @@
 
 #include "fatfs.h"
 
+#ifdef _DEBUG
 
 static union DEntry* link_dir_entries(struct dirent* dir, struct Kette* K, int cnt)
 {
@@ -634,3 +635,5 @@ int FATDrive::get_cache_buffer()	// search for free cache buffer
 
  return j;
 }
+
+#endif // _DEBUG
diff --git a/reactos/base/shell/explorer/shell/filechild.cpp b/reactos/base/shell/explorer/shell/filechild.cpp
index d5387b6c031..2bb9af57614 100644
--- a/reactos/base/shell/explorer/shell/filechild.cpp
+++ b/reactos/base/shell/explorer/shell/filechild.cpp
@@ -177,7 +177,7 @@ FileChildWindow::FileChildWindow(HWND hwnd, const FileChildWndInfo& info)
 		_root._entry = new RegistryRoot();
 		entry = _root.read_tree(info._path+_tcslen(_root._path));
 		break;
-
+#ifdef _DEBUG
 	  case ET_FAT: {
 		_root._drive_type = DRIVE_UNKNOWN;
 		_root._sort_order = SORT_NONE;
@@ -194,7 +194,7 @@ FileChildWindow::FileChildWindow(HWND hwnd, const FileChildWndInfo& info)
 			entry = _root.read_tree(info._path+_tcslen(_root._path));
 		}
 		break;}
-
+#endif
 #ifndef _NO_WIN_FS
 	  default:	// ET_WINDOWS
 		_root._drive_type = GetDriveType(info._path);