diff --git a/skyscraper_system.sh b/skyscraper_system.sh
index c3b496c..538cfc4 100755
--- a/skyscraper_system.sh
+++ b/skyscraper_system.sh
@@ -66,13 +66,13 @@ readonly ARCADE="fba neogeo mame-advmame mame-mame4all"
 SCRAP=true
 BUILD=true
 
-if [ "$1" = SCRAP ]; then
+if [ "$1" = scrap ] || [ "$1" = SCRAP ]; then
     BUILD=false
     printf "%s\n" "${COLOR_WHITE}${COLOR_BACKGROUND_RED}## SCRAP ONLY ${RESET_COLOR}"
     sleep 1
 fi
 
-if [ "$1" = BUILD ]; then
+if [ "$1" = build ] || [ "$1" = BUILD ]; then
     SCRAP=false
     printf "%s\n" "${COLOR_WHITE}${COLOR_BACKGROUND_RED}## BUILD ONLY ${RESET_COLOR}"
     sleep 1