diff --git a/battery.sh b/battery.sh
index 2a72f1d..17c7548 100755
--- a/battery.sh
+++ b/battery.sh
@@ -169,7 +169,7 @@ subsetting=$3
 ## ###############
 
 function log() {
-	echo -e "$(date +%D-%T) - $1"
+	echo -e "$(date +%D-%T) [$$]: $*"
 }
 
 function valid_percentage() {