diff --git a/src/script/api/Doxyfile_Game b/src/script/api/Doxyfile_Game
--- a/src/script/api/Doxyfile_Game
+++ b/src/script/api/Doxyfile_Game
@@ -91,7 +91,7 @@ WARN_LOGFILE           =
 #---------------------------------------------------------------------------
 # configuration options related to the input files
 #---------------------------------------------------------------------------
-INPUT                  = .
+INPUT                  = . $(GENERATED_API_DIR)
 INPUT_ENCODING         = UTF-8
 FILE_PATTERNS          = script_*.hpp \
                          game_*.hpp