diff --git a/host/xtest/pkcs11_1000.c b/host/xtest/pkcs11_1000.c
index baa092cee..c6b5e4100 100644
--- a/host/xtest/pkcs11_1000.c
+++ b/host/xtest/pkcs11_1000.c
@@ -6758,6 +6758,10 @@ static int test_rsa_pkcs_operations(ADBG_Case_t *c,
 	signature_len = sizeof(signature);
 
 	rv = C_SignInit(session, &sign_mechanism, private_key);
+	if (rv == CKR_MECHANISM_INVALID) {
+		Do_ADBG_Log("CKM_RSA_PKCS is not supported (CFG_CRYPTO_RSASSA_NA1 maybe disabled), skip test");
+		goto non_prehashed_rsa_tests;
+	}
 	if (!ADBG_EXPECT_CK_OK(c, rv))
 		goto err_destr_obj;
 
@@ -6777,6 +6781,8 @@ static int test_rsa_pkcs_operations(ADBG_Case_t *c,
 	if (!ADBG_EXPECT_CK_OK(c, rv))
 		goto err_destr_obj;
 
+non_prehashed_rsa_tests:
+
 	for (i = 0; i < ARRAY_SIZE(rsa_pkcs_sign_tests); i++) {
 		/*
 		 * Note: this order of end/begin here is just to get ADBG