diff --git a/cd.sh b/cd.sh
index 7ea99ee..99764141 100644
--- a/cd.sh
+++ b/cd.sh
@@ -17,9 +17,9 @@ cd_main () {
     cd_set_https_verification_off
     cd_update_packages_catalog
     cd_install_packages_tools
-    cd_install_ca
-    cd_write_ca
-    cd_update_ca
+    cd_install_ca_certificates
+    cd_write_ca_certificates
+    cd_update_ca_certificates
     cd_set_https_verification_on
     cd_update_packages_catalog
     cd_upgrade_packages
@@ -186,12 +186,12 @@ cd_install_packages_tools () {
     esac
 }
 
-cd_install_ca () {
+cd_install_ca_certificates () {
     cd_step "Install CA"
     cd_install_package "${CD_CA_PACKAGE}"
 }
 
-cd_write_ca () {
+cd_write_ca_certificates () {
 local index
 local target
 local text
@@ -210,7 +210,7 @@ local text
     done
 }
 
-cd_update_ca () {
+cd_update_ca_certificates () {
     cd_step "Update CA"
     case "${CD_OS_NAME}" in
         "debian") update-ca-certificates || exit ;;