diff --git a/src/madness/world/thread.cc b/src/madness/world/thread.cc
index f1be15c2bb0..654d9961ac3 100644
--- a/src/madness/world/thread.cc
+++ b/src/madness/world/thread.cc
@@ -46,8 +46,6 @@
 #include <cstring>
 #include <fstream>
 
-#include <sys/sysinfo.h>
-
 #if defined(HAVE_IBMBGQ) and defined(HPM)
 extern "C" unsigned int HPM_Prof_init_thread(void);
 extern "C" void HPM_Prof_start(unsigned int);
diff --git a/src/madness/world/thread.h b/src/madness/world/thread.h
index 051147049b4..85603b9e144 100644
--- a/src/madness/world/thread.h
+++ b/src/madness/world/thread.h
@@ -49,9 +49,6 @@
 #include <typeinfo>
 #include <new>
 
-#include <sys/sysinfo.h>
-
-
 //////////// Parsec Related Begin ////////////////////
 #ifdef HAVE_PARSEC
 #include "parsec.h"