diff --git a/tests/suites.c b/tests/suites.c
index e4dd93a0d..d41c3e274 100644
--- a/tests/suites.c
+++ b/tests/suites.c
@@ -172,7 +172,7 @@ static int IsValidCert(const char* line)
 
     begin = XSTRSTR(line, "-c ");
     if (begin == NULL)
-        return 0;
+        return 1;
 
     begin += 3;
     for (i = 0; i < sizeof(cert) - 1 && *begin != ' ' && *begin != '\0'; i++)