diff --git a/src/libCom/Makefile.Host b/src/libCom/Makefile.Host
index d671c8a3f..c4e22b300 100644
--- a/src/libCom/Makefile.Host
+++ b/src/libCom/Makefile.Host
@@ -63,7 +63,6 @@ LIBSRCS += postfix.c
 LIBSRCS += calcPerform.c
 LIBSRCS += sCalcPostfix.c
 LIBSRCS += sCalcPerform.c
-LIBSRCS += sCalcPostfix.c
 LIBSRCS += realpath.c
 LIBSRCS += tsSubr.c
 LIBSRCS += assertUNIX.c