diff --git a/Changelog.txt b/Changelog.txt
index cd0413610..ae2a77e5a 100644
--- a/Changelog.txt
+++ b/Changelog.txt
@@ -3,6 +3,8 @@ OpenBLAS ChangeLog
 Version 0.1 alpha2.5
 19-Feb-2012
 common:
+	* Fixed missing "#include <sched.h>" bug on Mac OS X.
+	  Thank Mike Nolta for the patch.
 	* Upgraded LAPACK to 3.4.0 version
 	* Fixed a bug on Mac OS X. Don't require SystemStubs on OS X.
 	  SystemStubs does not exist on Lion. Thank Stefan Karpinski.
diff --git a/common.h b/common.h
index 1a7dd434a..e848f33f3 100644
--- a/common.h
+++ b/common.h
@@ -89,6 +89,10 @@ extern "C" {
 #include <sched.h>
 #endif
 
+#ifdef OS_DARWIN
+#include <sched.h>
+#endif
+
 #ifdef OS_WINDOWS
 #ifdef  ATOM
 #define GOTO_ATOM ATOM