diff --git a/tests/suites/test_suite_ecp.function b/tests/suites/test_suite_ecp.function
index 40a037e..de61022 100644
--- a/tests/suites/test_suite_ecp.function
+++ b/tests/suites/test_suite_ecp.function
@@ -43,6 +43,7 @@
     unsigned char buf[42] = { 0 };
     const unsigned char *null_buf = NULL;
     mbedtls_ecp_group_id valid_group = MBEDTLS_ECP_DP_SECP192R1;
+    mbedtls_ecp_restart_ctx restart_ctx;
 
     TEST_INVALID_PARAM( mbedtls_ecp_point_init( NULL ) );
     TEST_INVALID_PARAM( mbedtls_ecp_keypair_init( NULL ) );
@@ -50,6 +51,7 @@
 
 #if defined(MBEDTLS_ECP_RESTARTABLE)
     TEST_INVALID_PARAM( mbedtls_ecp_restart_init( NULL ) );
+    TEST_INVALID_PARAM( mbedtls_ecp_check_budget( NULL, &restart_ctx, 42 ) );
 #endif /* MBEDTLS_ECP_RESTARTABLE */
 
     TEST_INVALID_PARAM_RET( MBEDTLS_ERR_ECP_BAD_INPUT_DATA,