diff --git a/setup.sh b/setup.sh
index ab1f1b976d293f5f3fa6a22f87394f0ba6aba38a..81844272956f0800bec486e05c2b4504914c10d6 100755
--- a/setup.sh
+++ b/setup.sh
@@ -163,7 +163,7 @@ function manage_plugins() {
 
         SAVEIFS=$IFS
         IFS=''
-        escape_char=$(printf "\u1b")
+        escape_char=$(printf "\033")
         escape=false
         read -rsn1 mode # get 1 character
         if [[ $mode == $escape_char ]]; then
@@ -266,7 +266,7 @@ function show_main_menu() {
 
         SAVEIFS=$IFS
         IFS=''
-        escape_char=$(printf "\u1b")
+        escape_char=$(printf "\033")
         escape=false
         read -rsn1 mode # get 1 character
         if [[ $mode == $escape_char ]]; then