diff --git a/powerwall.sh b/powerwall.sh
index 24c3b6f8..2fc440e7 100755
--- a/powerwall.sh
+++ b/powerwall.sh
@@ -56,14 +56,14 @@ CHECKTEMP_SERVICE(){
 				[ $temp_diff -lt 0 ] && temp_diff=$(($temp_diff * -1))
 						
 				if [ $(bc -l <<< "$temp_f >= $temp_warn") -eq 1 ] && [ $(bc -l <<< "$temp_f < $temp_crit") -eq 1 ]; then
-					if [ [ $temp_diff -gt 1 ] || [ "$last_temp" = "0" ] ]; then
+					if [ $temp_diff -gt 1 ] || [ "$last_temp" == "0" ]; then
 						echo "($temp_diff) WARNING TEMP: $temp_f°F" | mail -s "${1} TEMP WARNING" $email_alert
 						last_temp=$temp_f
 					fi
 					echo "($temp_d @ $temp_t) WARNING: $temp_f°F"
 					
 				elif [ $(bc -l <<< "$temp_f >= $temp_crit") -eq 1 ]; then
-					if [ [ $temp_diff -gt 1 ] || [ "$last_temp" == "0" ] ]; then
+					if [ $temp_diff -gt 1 ] || [ "$last_temp" == "0" ]; then
 						echo "CRITICAL TEMP: $temp_f°F" | mail -s "${1} TEMP CRITICAL" $email_alert
 						last_temp=$temp_f
 					fi