diff --git a/test/results.c b/test/results.c
index 0e37eff..0e3ba55 100644
--- a/test/results.c
+++ b/test/results.c
@@ -131,6 +131,10 @@ gsl_test_rel (double result, double expected, double relative_error,
     {
       status = -1;
     }
+  else if (fabs(result-expected) < relative_error)
+    {
+        status = 0;
+    }
   else if (expected != 0 ) 
     {
       status = (fabs(result-expected)/fabs(expected) > relative_error) ;