diff --git a/doc/Doxyfile.in b/doc/Doxyfile.in
index 000bc3ac..7693490c 100644
--- a/doc/Doxyfile.in
+++ b/doc/Doxyfile.in
@@ -789,7 +789,8 @@ RECURSIVE              = NO
 # Note that relative paths are relative to the directory from which doxygen is
 # run.
 
-EXCLUDE                =
+EXCLUDE                = @top_srcdir@/src/coap_io_lwip.c \
+                         @top_srcdir@/include/coap/lwippools.h
 
 # The EXCLUDE_SYMLINKS tag can be used to select whether or not files or
 # directories that are symbolic links (a Unix file system feature) are excluded