diff --git a/src/core/operations/FromBase85.mjs b/src/core/operations/FromBase85.mjs
index aaa1dc94..afbd6af3 100644
--- a/src/core/operations/FromBase85.mjs
+++ b/src/core/operations/FromBase85.mjs
@@ -114,7 +114,7 @@ class FromBase85 extends Operation {
                     .map((chr, idx) => {
                         const digit = alphabet.indexOf(chr);
                         if ((digit < 0 || digit > 84) && chr !== "z") {
-                                throw `Invalid character '${chr}' at index ${i + idx}`;
+                            throw `Invalid character '${chr}' at index ${i + idx}`;
                         }
                         return digit;
                     });