diff --git a/windows/JackShmMem_os.h b/windows/JackShmMem_os.h
index 24fffb6a..37a419f2 100644
--- a/windows/JackShmMem_os.h
+++ b/windows/JackShmMem_os.h
@@ -21,7 +21,9 @@ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 #ifndef __JackShmMem_WIN32__
 #define __JackShmMem_WIN32__
 
-#include <windows.h>
+#include <windows.h>
+
+// See GetProcessWorkingSetSize and SetProcessWorkingSetSize
 
 #define CHECK_MLOCK(ptr, size) (VirtualLock((ptr), (size)) != 0)
 #define CHECK_MUNLOCK(ptr, size) (VirtualUnlock((ptr), (size)) != 0)