diff --git a/doxygen b/doxygen
index 412a1f49..c12e3c7c 100644
--- a/doxygen
+++ b/doxygen
@@ -459,7 +459,7 @@ WARN_LOGFILE           =
 # directories like "/usr/src/myproject". Separate the files or directories 
 # with spaces.
 
-INPUT                  = src src/mappers src/boards src/drivers/common src/drivers/win src/drivers/pc src/input
+INPUT                  = src src/mappers src/boards src/drivers/common src/drivers/win src/drivers/sdl src/input
 
 # If the value of the INPUT tag contains directories, you can use the 
 # FILE_PATTERNS tag to specify one or more wildcard pattern (like *.cpp