diff --git a/Doxyfile b/Doxyfile
--- a/Doxyfile
+++ b/Doxyfile
@@ -289,8 +289,7 @@ EXPAND_ONLY_PREDEF     = YES
 SEARCH_INCLUDES        = YES
 INCLUDE_PATH           =
 INCLUDE_FILE_PATTERNS  =
-PREDEFINED             = ENABLE_NETWORK \
-                         WITH_ZLIB \
+PREDEFINED             = WITH_ZLIB \
                          WITH_LZO \
                          WITH_LIBLZMA \
                          WITH_SDL \