diff --git a/setup/so-functions b/setup/so-functions
index 0843c1d1a..90ea65156 100755
--- a/setup/so-functions
+++ b/setup/so-functions
@@ -2277,7 +2277,7 @@ sensor_pillar() {
 set_default_log_size() {
     local percentage
 
-	case $INSTALLTYPE in
+	case $install_type in
 		STANDALONE | EVAL | HEAVYNODE)
 			percentage=50
 			;;