diff --git a/cd.sh b/cd.sh
index 9039eb9..b84ae39 100644
--- a/cd.sh
+++ b/cd.sh
@@ -35,6 +35,7 @@ cd_main () {
 cd_set_environment () {
     cd_step "Set environment"
     #
+    CD_CA_PACKAGE="ca-certificates"
     CD_DNS_FILE="/etc/resolv.conf"
     CD_GIT_PACKAGE="git"
     CD_PYTHON_COMMAND="python3"
@@ -185,11 +186,7 @@ cd_install_packages_tools () {
 
 cd_install_ca () {
     cd_step "Install CA"
-    case "${CD_OS_NAME}" in
-        "debian") cd_install_package "ca-certificates" ;;
-        "alma") echo "TODO" ;;
-        *) cd_error_os "cd_install_ca" ;;
-    esac
+    cd_install_package "${CD_CA_PACKAGE}"
 }
 
 cd_copy_ca () {