diff --git a/cd.sh b/cd.sh
index 4bbfb69..f4c9886 100644
--- a/cd.sh
+++ b/cd.sh
@@ -155,7 +155,7 @@ cd_set_environment_variables () {
             CD_PM_INSTALL="dnf install --assumeyes"
             CD_PM_QUERY="rpm --query"
             CD_PM_UPDATE="dnf makecache"
-            CD_CMD_UPGRADE="dnf upgrade --assumeyes"
+            CD_PM_UPGRADE="dnf upgrade --assumeyes"
             CD_PKG_PKG=""
             CD_PM_CONF_PATH="/etc/dnf/dnf.conf"
             CD_PM_CONF_TEXT="\
@@ -174,7 +174,7 @@ skip_if_unavailable=False
             CD_PM_INSTALL="apk add"
             CD_PM_QUERY="apk info"
             CD_PM_UPDATE="apk update"
-            CD_CMD_UPGRADE="apk upgrade"
+            CD_PM_UPGRADE="apk upgrade"
             CD_PKG_PKG=""
             CD_PM_CONF_PATH=""
             CD_PM_CONF_TEXT=""
@@ -186,7 +186,7 @@ skip_if_unavailable=False
             CD_PM_INSTALL="pacman --sync --noconfirm"
             CD_PM_QUERY="pacman --query"
             CD_PM_UPDATE="pacman --sync --refresh"
-            CD_CMD_UPGRADE="pacman --sync --sysupgrade --noconfirm"
+            CD_PM_UPGRADE="pacman --sync --sysupgrade --noconfirm"
             CD_PKG_PKG=""
             CD_PM_CONF_PATH=""
             CD_PM_CONF_TEXT=""
@@ -198,7 +198,7 @@ skip_if_unavailable=False
             CD_PM_INSTALL="apt-get install --assume-yes"
             CD_PM_QUERY="dpkg-query --show"
             CD_PM_UPDATE="apt-get update"
-            CD_CMD_UPGRADE="apt-get upgrade --assume-yes"
+            CD_PM_UPGRADE="apt-get upgrade --assume-yes"
             CD_PKG_PKG="apt-utils"
             CD_PM_CONF_PATH="/etc/apt/apt.conf.d/apt.conf"
             CD_PM_CONF_TEXT="\
@@ -214,7 +214,7 @@ Dir::Etc::SourceParts \"\";
     esac
     cd_split
     cd_echo "CD_PM_CLEAN" \
-        "CD_PM_INSTALL" "CD_PM_QUERY" "CD_PM_UPDATE" "CD_CMD_UPGRADE"
+        "CD_PM_INSTALL" "CD_PM_QUERY" "CD_PM_UPDATE" "CD_PM_UPGRADE"
     cd_split
     cd_echo "CD_PKG_PKG" "CD_PM_CONF_PATH" "CD_PM_HTTPS_PATH"
     # specific
@@ -487,7 +487,7 @@ cd_set_https_verification_on () {
 
 cd_upgrade_packages () {
     cd_step "Upgrade packages"
-    ${CD_CMD_UPGRADE} || exit
+    ${CD_PM_UPGRADE} || exit
 }
 
 cd_install_git () {