diff --git a/src/tpm2/Implementation.h b/src/tpm2/Implementation.h
index 6a10e955..05e2a0b3 100644
--- a/src/tpm2/Implementation.h
+++ b/src/tpm2/Implementation.h
@@ -117,7 +117,7 @@
 #define  ALG_KEYEDHASH         ALG_YES
 #define  ALG_SHA256            ALG_YES
 #define  ALG_SHA384            ALG_YES
-#define  ALG_SHA512            ALG_NO
+#define  ALG_SHA512            ALG_YES
 #define  ALG_SM3_256           ALG_NO
 #define  ALG_SM4               ALG_NO
 #define  ALG_RSASSA            (ALG_YES*ALG_RSA)