diff --git a/cd.sh b/cd.sh
index ca22d36..4ef96ea 100644
--- a/cd.sh
+++ b/cd.sh
@@ -47,7 +47,7 @@ local variable
         "debian")
             case "${CD_OS_VERSION}" in
                 "bookworm"|"bullseye") cd_nop ;;
-                *) cd_error_os "CD_OS_VERSION=${CD_OS_VERSION}" ;;
+                *) cd_error_os "CD_OS_VERSION" ;;
             esac
             CD_PYTHON_PACKAGE="python3"
             CD_PYTHON_PACKAGES="/usr/lib/python3/dist-packages"
@@ -59,11 +59,11 @@ local variable
                     CD_PYTHON_PACKAGE="python3.11"
                     CD_PYTHON_PACKAGES="/usr/lib64/python3.11/site-packages"
                 ;;
-                *) cd_error_os "CD_OS_VERSION=${CD_OS_VERSION}" ;;
+                *) cd_error_os "CD_OS_VERSION" ;;
             esac
             CD_CA_ROOT="/etc/pki/ca-trust/source/anchors"
         ;;
-        *) cd_error_os "CD_OS_NAME=${CD_OS_NAME}" ;;
+        *) cd_error_os "CD_OS_NAME" ;;
     esac
     # ci / github
     if [ "${GITHUB_ACTIONS}" ] ; then
@@ -317,8 +317,11 @@ cd_error_ci () {
     echo "× CI: ${1}"
     exit 1
 }
+
 cd_error_os () {
-    echo "× OS: ${1}"
+local variable="${1}"
+    echo -n "× OS: "
+    cd_echo "${variable}"
     exit 2
 }