diff --git a/tools/install.sh b/tools/install.sh
index 495ad2c11..bc3723050 100755
--- a/tools/install.sh
+++ b/tools/install.sh
@@ -185,7 +185,7 @@ supports_truecolor() {
 fmt_link() {
   # $1: text, $2: url, $3: fallback mode
   if supports_hyperlinks; then
-    printf '\033]8;;%s\a%s\033]8;;\a\n' "$2" "$1"
+    printf '\033]8;;%s\033\\%s\033]8;;\033\\\n' "$2" "$1"
     return
   fi
 
diff --git a/tools/upgrade.sh b/tools/upgrade.sh
index afc6a98dd..2f3b4dae3 100755
--- a/tools/upgrade.sh
+++ b/tools/upgrade.sh
@@ -107,7 +107,7 @@ supports_truecolor() {
 fmt_link() {
   # $1: text, $2: url, $3: fallback mode
   if supports_hyperlinks; then
-    printf '\033]8;;%s\a%s\033]8;;\a\n' "$2" "$1"
+    printf '\033]8;;%s\033\\%s\033]8;;\033\\\n' "$2" "$1"
     return
   fi