diff --git a/library/psa_crypto.c b/library/psa_crypto.c
index b3be261..d45a852 100644
--- a/library/psa_crypto.c
+++ b/library/psa_crypto.c
@@ -4778,6 +4778,7 @@
         case PSA_KEY_DERIVATION_INPUT_LABEL:
         case PSA_KEY_DERIVATION_INPUT_SALT:
         case PSA_KEY_DERIVATION_INPUT_INFO:
+        case PSA_KEY_DERIVATION_INPUT_SEED:
             return( psa_key_derivation_input_raw( operation, step,
                                                   data, data_length ) );
         default: