diff --git a/tools/install.sh b/tools/install.sh
index 3c9126b..37e894e 100755
--- a/tools/install.sh
+++ b/tools/install.sh
@@ -12,7 +12,7 @@
 
 set -e
 
-if [ ! -n "$DONTINSTALL" ]; then
+if [ ! -n "$DONTINSTALL" ] || [ ! "$DONTINSTALL" eq "0" ]; then
 	DONTINSTALL="1"
 
 	if [ -d /proc/vz ] && [ ! -d /proc/vz/beancounter ]; then