diff --git a/Templates/a2b/attack.tpl b/Templates/a2b/attack.tpl
index 7770826c..346d7958 100644
--- a/Templates/a2b/attack.tpl
+++ b/Templates/a2b/attack.tpl
@@ -49,10 +49,28 @@ $ckey= $generator->generateRandStr(6);
  if (!isset($process['t10']) || $process['t10'] == ''){  $t10='0'; }else{  $t10=$process['t10']; } 
  if (!isset($process['t11']) || $process['t11'] == ''){  $t11='0'; }else{  $t11=$process['t11']; $showhero=1;} 
  if ($session->tribe == 3){
- $totalunits =$process['t1']+$process['t2']+$process['t4']+$process['t5']+$process['t6']+$process['t7']+$process['t8']+$process['t9']+$process['t10']+$process['t11'];
+ $totalunits = (!empty($process['t1']) ? $process['t1'] : 0) +
+               (!empty($process['t2']) ? $process['t2'] : 0) +
+               (!empty($process['t4']) ? $process['t4'] : 0) +
+               (!empty($process['t5']) ? $process['t5'] : 0) +
+               (!empty($process['t6']) ? $process['t6'] : 0) +
+               (!empty($process['t7']) ? $process['t7'] : 0) +
+               (!empty($process['t8']) ? $process['t8'] : 0) +
+               (!empty($process['t9']) ? $process['t9'] : 0) +
+               (!empty($process['t10']) ? $process['t10'] : 0) +
+               (!empty($process['t11']) ? $process['t11'] : 0);
  
  }else{
- $totalunits =$process['t1']+$process['t2']+$process['t3']+$process['t5']+$process['t6']+$process['t7']+$process['t8']+$process['t9']+$process['t10']+$process['t11'];
+ $totalunits = (!empty($process['t1']) ? $process['t1'] : 0) +
+               (!empty($process['t2']) ? $process['t2'] : 0) +
+               (!empty($process['t3']) ? $process['t3'] : 0) +
+               (!empty($process['t5']) ? $process['t5'] : 0) +
+               (!empty($process['t6']) ? $process['t6'] : 0) +
+               (!empty($process['t7']) ? $process['t7'] : 0) +
+               (!empty($process['t8']) ? $process['t8'] : 0) +
+               (!empty($process['t9']) ? $process['t9'] : 0) +
+               (!empty($process['t10']) ? $process['t10'] : 0) +
+               (!empty($process['t11']) ? $process['t11'] : 0);
  }
  if ($scout==1 && $totalunits==0) {
 if ($process['c'] != 2){