diff --git a/library/psa_crypto.c b/library/psa_crypto.c
index 782e261..f304950 100644
--- a/library/psa_crypto.c
+++ b/library/psa_crypto.c
@@ -5999,6 +5999,8 @@
 #if defined(PSA_WANT_KEY_TYPE_ECC_KEY_PAIR)
     if( PSA_KEY_TYPE_IS_ECC( type ) && PSA_KEY_TYPE_IS_KEY_PAIR( type ) )
     {
+        /* To avoid empty block, return successfully here. */
+        return( PSA_SUCCESS );
     }
     else
 #endif /* defined(PSA_WANT_KEY_TYPE_ECC_KEY_PAIR) */