diff --git a/include/psa/crypto_struct.h b/include/psa/crypto_struct.h
index 47012fd..aee4002 100644
--- a/include/psa/crypto_struct.h
+++ b/include/psa/crypto_struct.h
@@ -394,6 +394,12 @@
 static inline void psa_set_key_usage_flags(psa_key_attributes_t *attributes,
                                            psa_key_usage_t usage_flags)
 {
+    if( usage_flags & PSA_KEY_USAGE_SIGN_HASH )
+        usage_flags |= PSA_KEY_USAGE_SIGN_MESSAGE;
+
+    if( usage_flags & PSA_KEY_USAGE_VERIFY_HASH )
+        usage_flags |= PSA_KEY_USAGE_VERIFY_MESSAGE;
+
     attributes->core.policy.usage = usage_flags;
 }