diff --git a/test/repeat_unit.sh b/test/repeat_unit.sh
index 8ce12b6..58b78e2 100755
--- a/test/repeat_unit.sh
+++ b/test/repeat_unit.sh
@@ -56,24 +56,25 @@ cd "unit_tests"
 
 # run all test except single one is specified
 if [ ! -z $2 ]; then 
-  $numberofruns = $2
+  numberofruns=$2
 fi
   
 if [ -z $1 ]; then
     for i in *
     do
         if [ -d $i -a -f $i/test.act ]; then
-        	while [ $failed = 0 ] && [ $iteration < $numberofruns ]
+        	while [ $failed = 0 ] && [ $iteration -lt $numberofruns ]
         	do
 	        	run_test $iteration
+                iteration=$iteration+1
 	        done 
         fi
     done
 else
-
-       while [ $failed = 0 ] && [ $iteration < $numberofruns ]
+       while [ $failed -eq 0 ] && [ $iteration -lt $numberofruns ]
        do
 	       run_test $1 $iteration
+           iteration=$((iteration+1))
        done 
     
 fi