diff --git a/acme.sh b/acme.sh
index e1ee3867..1ba2c6a5 100755
--- a/acme.sh
+++ b/acme.sh
@@ -2266,6 +2266,9 @@ _setopt() {
     if _contains "$__val" "&"; then
       __val="$(echo "$__val" | sed 's/&/\\&/g')"
     fi
+    if _contains "$__val" "|"; then
+      __val="$(echo "$__val" | sed 's/|/\\|/g')"
+    fi
     text="$(cat "$__conf")"
     printf -- "%s\n" "$text" | sed "s|^$__opt$__sep.*$|$__opt$__sep$__val$__end|" >"$__conf"
 
@@ -2273,6 +2276,9 @@ _setopt() {
     if _contains "$__val" "&"; then
       __val="$(echo "$__val" | sed 's/&/\\&/g')"
     fi
+    if _contains "$__val" "|"; then
+      __val="$(echo "$__val" | sed 's/|/\\|/g')"
+    fi
     text="$(cat "$__conf")"
     printf -- "%s\n" "$text" | sed "s|^#$__opt$__sep.*$|$__opt$__sep$__val$__end|" >"$__conf"