diff --git a/include/thread.h b/include/thread.h
index 6684027bc..66143c01b 100644
--- a/include/thread.h
+++ b/include/thread.h
@@ -34,8 +34,9 @@ class Thread
 
     int start(unsigned int ss=64, bool jemalloc_tcache=true);
     int join();
-    int detach();
-    pthread_t self();
+// commenting the following code because we don't use it
+//    int detach();
+//    pthread_t self();
     
     virtual void* run() = 0;
     
diff --git a/lib/thread.cpp b/lib/thread.cpp
index 8587a98bc..e21f3866d 100644
--- a/lib/thread.cpp
+++ b/lib/thread.cpp
@@ -69,6 +69,7 @@ int Thread::join()
     return result;
 }
 
+/* commenting the following code because we don't use it
 int Thread::detach()
 {
     int result = -1;
@@ -84,3 +85,4 @@ int Thread::detach()
 pthread_t Thread::self() {
     return m_tid;
 }
+*/