diff --git a/installer/installer.sh b/installer/installer.sh
index 4248cfe..ed10c61 100755
--- a/installer/installer.sh
+++ b/installer/installer.sh
@@ -41,7 +41,7 @@ function comm {
 	echo "[ ERROR ] $1" >> /tmp/install.log
 	fi
 	
-	if [[ $? == "0" && $5 != "1" ]];then
+	if [ $? == "0" ] && [ $5 != "1" ];then
 		echo "[ OK ] $1"
 		echo "[ OK ] $1" >> /tmp/install.log
 	fi