diff --git a/tests/suites/test_suite_x509parse.function b/tests/suites/test_suite_x509parse.function
index c38a372..938917a 100644
--- a/tests/suites/test_suite_x509parse.function
+++ b/tests/suites/test_suite_x509parse.function
@@ -729,7 +729,7 @@
 #if defined(MBEDTLS_X509_TRUSTED_CERTIFICATE_CALLBACK)
     /* CRLs aren't supported with CA callbacks, so skip the CA callback
      * version of the test if CRLs are in use. */
-    if (crl_file == NULL || strcmp(crl_file, "") == 0) {
+    if (strcmp(crl_file, "") == 0) {
         flags = 0;
 
         res = mbedtls_x509_crt_verify_with_ca_cb(&crt,