diff --git a/doc/devel/Doxyfile b/doc/devel/Doxyfile
index 579edf2c92..3c41f8aa7c 100644
--- a/doc/devel/Doxyfile
+++ b/doc/devel/Doxyfile
@@ -875,6 +875,7 @@ INPUT                  = ../../src/bin/agent \
                          ../../src/lib/config_backend \
                          ../../src/lib/cql \
                          ../../src/lib/cryptolink \
+                         ../../src/lib/d2srv \
                          ../../src/lib/database \
                          ../../src/lib/dhcp \
                          ../../src/lib/dhcp_ddns \