diff --git a/common/functions.sh b/common/functions.sh
index d0f4545..a6605aa 100644
--- a/common/functions.sh
+++ b/common/functions.sh
@@ -73,7 +73,7 @@ pkgmgr_update(){
 
 
 get_system_used_space() {
-  echo $(df --output=used -B1 / | tail -n 1| cut -d'%' -f1)
+  return $(df --output=used -B1 / | tail -n 1| cut -d'%' -f1)
 }
 
 human_readable_bytes() {