diff --git a/CPP/7zip/Bundles/Format7zF/Arc.mak b/CPP/7zip/Bundles/Format7zF/Arc.mak
index 4f28e05c..9b9ae22a 100644
--- a/CPP/7zip/Bundles/Format7zF/Arc.mak
+++ b/CPP/7zip/Bundles/Format7zF/Arc.mak
@@ -263,7 +263,6 @@ HASHES_OBJS = \
   $O\sha512.obj \
 
 C_OBJS = \
-  $O\sha512.obj \
   $O\7zBuf2.obj \
   $O\7zStream.obj \
   $O\Alloc.obj \