diff --git a/du_setup.sh b/du_setup.sh
index 3d96987..6e433f9 100644
--- a/du_setup.sh
+++ b/du_setup.sh
@@ -2248,7 +2248,8 @@ EOF
     log "Successfully created temporary .bashrc source at $temp_source_bashrc"
 
     if [[ -f "$BASHRC_PATH" ]] && ! grep -q "generated by /usr/sbin/adduser" "$BASHRC_PATH" 2>/dev/null; then
-        local BASHRC_BACKUP="$BASHRC_PATH.backup_$(date +%Y%m%d_%H%M%S)"
+	    local BASHRC_BACKUP
+        BASHRC_BACKUP="$BASHRC_PATH.backup_$(date +%Y%m%d_%H%M%S)"
         print_info "Backing up existing non-default .bashrc to $BASHRC_BACKUP"
         cp "$BASHRC_PATH" "$BASHRC_BACKUP"
         log "Backed up existing .bashrc to $BASHRC_BACKUP"