diff --git a/src/crypto/Makefile b/src/crypto/Makefile
index d181e7231..ee93e41fb 100644
--- a/src/crypto/Makefile
+++ b/src/crypto/Makefile
@@ -14,6 +14,9 @@ CFLAGS += -DCONFIG_TLS_INTERNAL_CLIENT
 CFLAGS += -DCONFIG_TLS_INTERNAL_SERVER
 #CFLAGS += -DALL_DH_GROUPS
 CFLAGS += -DCONFIG_SHA256
+CFLAGS += -DCONFIG_SHA384
+CFLAGS += -DCONFIG_HMAC_SHA384_KDF
+CFLAGS += -DCONFIG_INTERNAL_SHA384
 
 LIB_OBJS= \
 	aes-cbc.o \
@@ -48,6 +51,8 @@ LIB_OBJS= \
 	sha256-prf.o \
 	sha256-tlsprf.o \
 	sha256-internal.o \
+	sha384.o \
+	sha384-prf.o \
 	sha384-internal.o \
 	sha512-internal.o