diff --git a/func.inc.php b/func.inc.php
index 2b21de0..a4f8944 100644
--- a/func.inc.php
+++ b/func.inc.php
@@ -546,13 +546,23 @@ function process_host_disp($desmhash, $summary_data_array, $dev_data_array)
 
     if ($Hash_Method == 'scrypt')
     {
-      $avgmhash =   $summary_data_array['SUMMARY'][0]['MHS av']*1000;
-      $fivesmhash =  $summary_data_array['SUMMARY'][0]['MHS 5s']*1000;
+	if (!empty($summary_data_array['SUMMARY'][0]['MHS av'])){
+	  $avgmhash =   $summary_data_array['SUMMARY'][0]['MHS av']*1000;
+	  $fivesmhash =  $summary_data_array['SUMMARY'][0]['MHS 5s']*1000;
+	}else{
+	  $avgmhash =   null;
+	  $fivesmhash =  null;
+	}
     }
     else
     {
-      $avgmhash =   $summary_data_array['SUMMARY'][0]['MHS av'];
-      $fivesmhash =  $summary_data_array['SUMMARY'][0]['MHS 5s'];
+	if (!empty($summary_data_array['SUMMARY'][0]['MHS av'])){
+	  $avgmhash =   $summary_data_array['SUMMARY'][0]['MHS av'];
+	  $fivesmhash =  $summary_data_array['SUMMARY'][0]['MHS 5s'];
+	}else{
+	  $avgmhash =   null;
+  	  $fivesmhash =  null;
+	}
     }
 
     $accepted =    $summary_data_array['SUMMARY'][0]['Accepted'];