diff --git a/dlls/kernel32/path.c b/dlls/kernel32/path.c
index f0f713f6c62..aad260f9c4b 100644
--- a/dlls/kernel32/path.c
+++ b/dlls/kernel32/path.c
@@ -1010,6 +1010,9 @@ BOOL WINAPI MoveFileWithProgressW( LPCWSTR source, LPCWSTR dest,
     if (!dest)
         return DeleteFileW( source );
 
+    if (flag & MOVEFILE_WRITE_THROUGH)
+        FIXME("MOVEFILE_WRITE_THROUGH unimplemented\n");
+
     /* check if we are allowed to rename the source */
 
     if (!RtlDosPathNameToNtPathName_U( source, &nt_name, NULL, NULL ))
diff --git a/include/winbase.h b/include/winbase.h
index e2ee515ae19..f3130a045b6 100644
--- a/include/winbase.h
+++ b/include/winbase.h
@@ -845,6 +845,7 @@ typedef DWORD (CALLBACK *LPPROGRESS_ROUTINE)(LARGE_INTEGER, LARGE_INTEGER, LARGE
 #define MOVEFILE_REPLACE_EXISTING       0x00000001
 #define MOVEFILE_COPY_ALLOWED           0x00000002
 #define MOVEFILE_DELAY_UNTIL_REBOOT     0x00000004
+#define MOVEFILE_WRITE_THROUGH          0x00000008
 
 #define REPLACEFILE_WRITE_THROUGH       0x00000001
 #define REPLACEFILE_IGNORE_MERGE_ERRORS 0x00000002