diff --git a/include/psa/crypto_struct.h b/include/psa/crypto_struct.h
index b981f23..85c9974 100644
--- a/include/psa/crypto_struct.h
+++ b/include/psa/crypto_struct.h
@@ -102,8 +102,7 @@
     int iv_required : 1;
     int iv_set : 1;
     int has_input : 1;
-    int key_usage_sign : 1;
-    int key_usage_verify : 1;
+    int is_sign : 1;
     uint8_t mac_size;
     union
     {