diff --git a/create_rom_pack.sh b/create_rom_pack.sh
index 0471031..49627a7 100755
--- a/create_rom_pack.sh
+++ b/create_rom_pack.sh
@@ -79,8 +79,10 @@ esac
 
 readonly TEXT1="añadiendo enlaces para "
 readonly TEXT2=" ..."
-readonly C_BLUE=$(tput setaf 4)
-readonly C_NORMAL=$(tput sgr0)
+C_BLUE=$(tput setaf 4)
+readonly C_BLUE
+C_NORMAL=$(tput sgr0)
+readonly C_NORMAL
 
 ## console systems
 for SYSTEM in $SCAN_SYSTEM; do