diff --git a/configs/config-symmetric-only.h b/configs/config-symmetric-only.h
index 8a289cd..28150d6 100644
--- a/configs/config-symmetric-only.h
+++ b/configs/config-symmetric-only.h
@@ -86,6 +86,7 @@
 #define MBEDTLS_SHA1_C
 #define MBEDTLS_SHA256_C
 #define MBEDTLS_SHA512_C
+#define MBEDTLS_SHA384_C
 //#define MBEDTLS_THREADING_C
 #define MBEDTLS_TIMING_C
 #define MBEDTLS_VERSION_C