diff --git a/scripts/install.sh b/scripts/install.sh
index 0fac030e3..d5cf28a0b 100755
--- a/scripts/install.sh
+++ b/scripts/install.sh
@@ -41,5 +41,5 @@ curl -fsSL  https://raw.githubusercontent.com/midoks/mdserver-web/master/scripts
 
 
 endTime=`date +%s`
-((outTime=($endTime-$startTime)/60))
+outTime=($endTime-$startTime)/60
 echo -e "Time consumed:\033[32m $outTime \033[0mMinute!"
\ No newline at end of file