diff --git a/ConfigureChecks.cmake b/ConfigureChecks.cmake
index 2206bc9..5914777 100644
--- a/ConfigureChecks.cmake
+++ b/ConfigureChecks.cmake
@@ -356,8 +356,8 @@ endif( )
 ##### checks for xwd codec #####
 
 if( BUILD_XWD )
-  find_file( HAVE_XWDFILE_H "XWDFile.h" )
+  find_file( HAVE_XWDFILE_H "XWDFile.h" PATH_SUFFIXES "X11" )
   if( NOT HAVE_XWDFILE_H )
-    tde_message_fatal( "xwd codec was requested but xwdfile.h not found on your system" )
+    tde_message_fatal( "xwd codec was requested but X11/XWDFile.h not found on your system" )
   endif( )
 endif( )