diff --git a/Doxyfile.global b/Doxyfile.global
index 5c41093..9d8dbf5 100644
--- a/Doxyfile.global
+++ b/Doxyfile.global
@@ -1282,7 +1282,7 @@ INCLUDE_FILE_PATTERNS  =
 
 PREDEFINED             = TQT_VERSION=320 \
                          __cplusplus \
-                         Q_WS_X11
+                         TQ_WS_X11
 
 # If the MACRO_EXPANSION and EXPAND_ONLY_PREDEF tags are set to YES then
 # this tag can be used to specify a list of macro names that should be expanded.