diff --git a/src/libopensc/Makefile.mak b/src/libopensc/Makefile.mak
index fedbaed0..eaae9dbb 100644
--- a/src/libopensc/Makefile.mak
+++ b/src/libopensc/Makefile.mak
@@ -27,7 +27,7 @@ OBJECTS			= \
 	card-cardos.obj card-tcos.obj card-emv.obj card-default.obj \
 	card-mcrd.obj card-starcos.obj card-openpgp.obj card-jcop.obj \
 	card-oberthur.obj card-belpic.obj card-atrust-acos.obj \
-	card-incrypto34.obj card-piv.obj\
+	card-incrypto34.obj card-piv.obj card-acos5.obj \
 	muscle.obj card-muscle.obj muscle-filesystem.obj \
 	compression.obj p15card-helper.obj \
 	\