diff --git a/doc/doxygen/lwip.Doxyfile b/doc/doxygen/lwip.Doxyfile
index d42af3b0..9e2160e6 100644
--- a/doc/doxygen/lwip.Doxyfile
+++ b/doc/doxygen/lwip.Doxyfile
@@ -1806,7 +1806,7 @@ LATEX_TIMESTAMP        = NO
 # readers/editors.
 # The default value is: NO.
 
-GENERATE_RTF           = YES
+GENERATE_RTF           = NO
 
 # The RTF_OUTPUT tag is used to specify where the RTF docs will be put. If a
 # relative path is entered the value of OUTPUT_DIRECTORY will be put in front of