diff --git a/src/common/common.h b/src/common/common.h
index 2f96ee2a89..86ba0677fc 100644
--- a/src/common/common.h
+++ b/src/common/common.h
@@ -199,11 +199,7 @@
 * Darwin Platforms
 *****************************************************/
 #ifdef DARWIN
-// EKU: obsolete, replaced by _FILE_OFFSET_BITS
-//#ifndef UNIX_64_BIT_IO
-//#define UNIX_64_BIT_IO
-//#endif
-//
+
 //format for __LINE__
 #define LINEFORMAT "d"