diff --git a/tests/suites/test_suite_x509write.function b/tests/suites/test_suite_x509write.function
index 8fe3b841d..bf43a8001 100644
--- a/tests/suites/test_suite_x509write.function
+++ b/tests/suites/test_suite_x509write.function
@@ -147,7 +147,7 @@ void x509_csr_check_opaque( char *key_file, int md_type, int key_usage,
 
     md_alg_psa = mbedtls_psa_translate_md( (mbedtls_md_type_t) md_type );
     TEST_ASSERT( md_alg_psa != MBEDTLS_MD_NONE );
-    
+
     mbedtls_pk_init( &key );
     TEST_ASSERT( mbedtls_pk_parse_keyfile( &key, key_file, NULL ) == 0 );
     TEST_ASSERT( mbedtls_pk_wrap_as_opaque( &key, &slot, md_alg_psa ) == 0 );