diff --git a/crypto/Makefile b/crypto/Makefile
index a349537e7..347de0cc1 100644
--- a/crypto/Makefile
+++ b/crypto/Makefile
@@ -35,14 +35,14 @@ GENERAL=Makefile README crypto-lib.com install.com
 
 LIB= $(TOP)/libcrypto.a
 SHARED_LIB= libcrypto$(SHLIB_EXT)
-LIBSRC=	cryptlib.c mem.c mem_clr.c mem_dbg.c cversion.c ex_data.c tmdiff.c cpt_err.c ebcdic.c uid.c o_time.c
-LIBOBJ= cryptlib.o mem.o mem_clr.o mem_dbg.o cversion.o ex_data.o tmdiff.o cpt_err.o ebcdic.o uid.o o_time.o
+LIBSRC=	cryptlib.c mem.c mem_clr.c mem_dbg.c cversion.c ex_data.c tmdiff.c cpt_err.c ebcdic.c uid.c o_time.c o_str.c
+LIBOBJ= cryptlib.o mem.o mem_clr.o mem_dbg.o cversion.o ex_data.o tmdiff.o cpt_err.o ebcdic.o uid.o o_time.o o_str.o
 
 SRC= $(LIBSRC)
 
 EXHEADER= crypto.h tmdiff.h opensslv.h opensslconf.h ebcdic.h symhacks.h \
 	ossl_typ.h
-HEADER=	cryptlib.h buildinf.h md32_common.h o_time.h $(EXHEADER)
+HEADER=	cryptlib.h buildinf.h md32_common.h o_time.h o_str.h $(EXHEADER)
 
 ALL=    $(GENERAL) $(SRC) $(HEADER)