diff --git a/util/doc.config b/util/doc.config
index a427e04..7c96ec7 100644
--- a/util/doc.config
+++ b/util/doc.config
@@ -16,7 +16,6 @@
       "include/openssl/obj.h",
       "include/openssl/rand.h",
       "include/openssl/stack.h",
-      "include/openssl/thread.h",
       "include/openssl/time_support.h"
     ]
   },{