diff --git a/doc/doxygen/riot.doxyfile b/doc/doxygen/riot.doxyfile
index b72dc133a6..0eee110a96 100644
--- a/doc/doxygen/riot.doxyfile
+++ b/doc/doxygen/riot.doxyfile
@@ -831,6 +831,7 @@ EXCLUDE_PATTERNS       = */board/*/tools/* \
                          */pkg/lwip/* \
                          */pkg/tlsf/patch.txt \
                          */sys/include/embUnit/* \
+                         */sys/random/fortuna/* \
                          */sys/random/tinymt32/* \
                          */toolchain/* \
                          */vendor/* \