diff --git a/spcd/bootstrap.sh b/spcd/bootstrap.sh
index 0f5d619..667ffbb 100644
--- a/spcd/bootstrap.sh
+++ b/spcd/bootstrap.sh
@@ -592,10 +592,9 @@ ${SPCD_PROJECT_ROOT}$(basename "${GITHUB_SERVER_URL}")"
     spcd_split
     spcd_os_printenv "SPCD_OS_ID" "SPCD_OS_VERSION"
     # universal
-    SPCD_DNS_FILE="/etc/resolv.conf"
     SPCD_PYTHON_ALIAS="python3"
     spcd_split
-    spcd_os_printenv "SPCD_DNS_FILE" "SPCD_PYTHON_ALIAS"
+    spcd_os_printenv "SPCD_PYTHON_ALIAS"
     # set package manager
     case "${SPCD_OS_ID}" in
     "${SPCD_OS_ALPINE}")
@@ -853,7 +852,7 @@ spcd_dns() {
 nameserver ${spcd_sdr__value}
 "
     done
-    spcd_os_write "${SPCD_DNS_FILE}" "${spcd_sdr__text}"
+    spcd_os_write "/etc/resolv.conf" "${spcd_sdr__text}"
 }
 
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