diff --git a/transcrypt b/transcrypt
index 9622464..ebea733 100755
--- a/transcrypt
+++ b/transcrypt
@@ -183,11 +183,11 @@ is_salt_prefix_workaround_required() {
 
 # source https://stackoverflow.com/a/42828523/465684
 hex2string() {
-  local I=0
-  while [ $I -lt ${#1} ]; do
-    echo -en "\x"${1:$I:2}
-    let "I += 2"
-  done
+    local I=0
+    while [ $I -lt ${#1} ]; do
+        echo -en "\x"${1:$I:2}
+        let "I += 2"
+    done
 }
 
 # The `decryption -> encryption` process on an unchanged file must be