diff --git a/plugins/other/esxi b/plugins/other/esxi
index 34506db1..866e02cd 100755
--- a/plugins/other/esxi
+++ b/plugins/other/esxi
@@ -73,6 +73,9 @@ function VMoverallCpuUsage () {
 	while read c ; do
 		temp="${c/*overallCpuUsage = /}"
 		vmcpu[$n]="${temp/,*/}"
+		if [ "${vmcpu[$n]}" == "<unset>" ]; then
+			vmcpu[$n]="0"			
+		fi
 		(( n++ ))
 	done <<EOF
 $cpulist
@@ -85,6 +88,9 @@ function VMoverallGuestMemUsage () {
 	while read m ; do
 		temp="${m/*guestMemoryUsage = /}"
 		vmmem[$n]="${temp/,*/}"
+		if [ "${vmmem[$n]}" == "<unset>" ]; then
+			vmmem[$n]="0"			
+		fi
 		(( n++ ))
 	done <<EOF
 $memlist
@@ -97,6 +103,9 @@ function VMoverallHostMemUsage () {
 	while read m ; do
 		temp="${m/*hostMemoryUsage = /}"
 		vmmem[$n]="${temp/,*/}"
+		if [ "${vmmem[$n]}" == "<unset>" ]; then
+			vmmem[$n]="0"			
+		fi
 		(( n++ ))
 	done <<EOF
 $memlist