diff --git a/src/graphics/GraphicsCache.C b/src/graphics/GraphicsCache.C
index a8a5baa2f9..7201c7bfbf 100644
--- a/src/graphics/GraphicsCache.C
+++ b/src/graphics/GraphicsCache.C
@@ -17,7 +17,6 @@
 
 #include "debug.h"
 
-#include "support/filename.h"
 #include "support/filetools.h"
 
 #include <map>
diff --git a/src/graphics/GraphicsCacheItem.C b/src/graphics/GraphicsCacheItem.C
index 3bba0b26c1..db07b16eb2 100644
--- a/src/graphics/GraphicsCacheItem.C
+++ b/src/graphics/GraphicsCacheItem.C
@@ -20,7 +20,6 @@
 #include "debug.h"
 #include "format.h"
 
-#include "support/filename.h"
 #include "support/filetools.h"
 #include "support/FileMonitor.h"
 #include "support/lyxlib.h"
diff --git a/src/graphics/GraphicsLoader.C b/src/graphics/GraphicsLoader.C
index ed0257c715..dc128a1b6b 100644
--- a/src/graphics/GraphicsLoader.C
+++ b/src/graphics/GraphicsLoader.C
@@ -17,8 +17,6 @@
 #include "GraphicsParams.h"
 #include "LoaderQueue.h"
 
-#include "support/filename.h"
-
 #include <boost/bind.hpp>
 
 
diff --git a/src/lyx_main.C b/src/lyx_main.C
index ec5d8ad1b1..fbb4bd7164 100644
--- a/src/lyx_main.C
+++ b/src/lyx_main.C
@@ -49,7 +49,6 @@
 #include "frontends/LyXView.h"
 
 #include "support/environment.h"
-#include "support/filename.h"
 #include "support/filetools.h"
 #include "support/fontutils.h"
 #include "support/lyxlib.h"
diff --git a/src/output_plaintext.C b/src/output_plaintext.C
index 46e3990ce1..87919c0bf1 100644
--- a/src/output_plaintext.C
+++ b/src/output_plaintext.C
@@ -22,7 +22,6 @@
 #include "ParagraphList.h"
 #include "ParagraphParameters.h"
 
-#include "support/filename.h"
 #include "support/lstrings.h"