diff --git a/doc/Doxyfile b/doc/Doxyfile
index 74cd68ea5..254a94673 100644
--- a/doc/Doxyfile
+++ b/doc/Doxyfile
@@ -95,7 +95,7 @@ WARN_LOGFILE           =
 #---------------------------------------------------------------------------
 # configuration options related to the input files
 #---------------------------------------------------------------------------
-INPUT                  = rabit dmlc
+INPUT                  = rabit
 INPUT_ENCODING         = UTF-8
 FILE_PATTERNS          =
 RECURSIVE              = NO