diff --git a/src/blitter/8bpp_debug.cpp b/src/blitter/8bpp_debug.cpp
index 3779508e9b..3f4c0b046f 100644
--- a/src/blitter/8bpp_debug.cpp
+++ b/src/blitter/8bpp_debug.cpp
@@ -1,3 +1,7 @@
+/* $Id$ */
+
+/** @file 8bpp_debug.cpp */
+
 #include "../stdafx.h"
 #include "../zoom.hpp"
 #include "../gfx.h"
diff --git a/src/blitter/8bpp_optimized.cpp b/src/blitter/8bpp_optimized.cpp
index 58003b16a4..7a105544cc 100644
--- a/src/blitter/8bpp_optimized.cpp
+++ b/src/blitter/8bpp_optimized.cpp
@@ -1,3 +1,7 @@
+/* $Id$ */
+
+/** @file 8bpp_optimized.cpp */
+
 #include "../stdafx.h"
 #include "../zoom.hpp"
 #include "../gfx.h"
diff --git a/src/blitter/8bpp_simple.cpp b/src/blitter/8bpp_simple.cpp
index 3049172751..170afa460e 100644
--- a/src/blitter/8bpp_simple.cpp
+++ b/src/blitter/8bpp_simple.cpp
@@ -1,3 +1,7 @@
+/* $Id$ */
+
+/** @file 8bpp_simple.cpp */
+
 #include "../stdafx.h"
 #include "../zoom.hpp"
 #include "../gfx.h"
diff --git a/src/spriteloader/grf.cpp b/src/spriteloader/grf.cpp
index 4d412d6ea6..5fd837b6dc 100644
--- a/src/spriteloader/grf.cpp
+++ b/src/spriteloader/grf.cpp
@@ -1,3 +1,7 @@
+/* $Id$ */
+
+/** @file grf.cpp */
+
 #include "../stdafx.h"
 #include "../gfx.h"
 #include "../fileio.h"