diff --git a/dist/cjs/utils/bufferedString.js b/dist/cjs/utils/bufferedString.js
index 82f710a018f9771fe10335e2dcacd75d707d9062..f3cfa64cefa967d7a83c328e1abb9246135b067b 100644
--- a/dist/cjs/utils/bufferedString.js
+++ b/dist/cjs/utils/bufferedString.js
@@ -16,7 +16,7 @@ class NonBufferedString {
     constructor() {
         // fatal: true makes invalid byte sequences (e.g. a lead byte followed by a
         // non-continuation byte) throw instead of silently decoding to U+FFFD.
-        this.decoder = new TextDecoder("utf-8", { fatal: true });
+        this.decoder = new TextDecoder("utf-8", { fatal: true, ignoreBOM: true });
         // Pieces appended since the last toString(), not yet folded into `string`.
         this.pending = [];
         this.string = "";
@@ -66,7 +66,7 @@ class BufferedString {
     constructor(bufferSize) {
         // fatal: true makes invalid byte sequences (e.g. a lead byte followed by a
         // non-continuation byte) throw instead of silently decoding to U+FFFD.
-        this.decoder = new TextDecoder("utf-8", { fatal: true });
+        this.decoder = new TextDecoder("utf-8", { fatal: true, ignoreBOM: true });
         this.bufferOffset = 0;
         this.string = "";
         this.byteLength = 0;
diff --git a/dist/mjs/utils/bufferedString.js b/dist/mjs/utils/bufferedString.js
index 0fb208d8615f5e20a086f75a37bef928b155c47c..0d8ca407d594d61798eca7f7253e1dfc1770d291 100644
--- a/dist/mjs/utils/bufferedString.js
+++ b/dist/mjs/utils/bufferedString.js
@@ -13,7 +13,7 @@ export class NonBufferedString {
     constructor() {
         // fatal: true makes invalid byte sequences (e.g. a lead byte followed by a
         // non-continuation byte) throw instead of silently decoding to U+FFFD.
-        this.decoder = new TextDecoder("utf-8", { fatal: true });
+        this.decoder = new TextDecoder("utf-8", { fatal: true, ignoreBOM: true });
         // Pieces appended since the last toString(), not yet folded into `string`.
         this.pending = [];
         this.string = "";
@@ -62,7 +62,7 @@ export class BufferedString {
     constructor(bufferSize) {
         // fatal: true makes invalid byte sequences (e.g. a lead byte followed by a
         // non-continuation byte) throw instead of silently decoding to U+FFFD.
-        this.decoder = new TextDecoder("utf-8", { fatal: true });
+        this.decoder = new TextDecoder("utf-8", { fatal: true, ignoreBOM: true });
         this.bufferOffset = 0;
         this.string = "";
         this.byteLength = 0;
diff --git a/src/utils/bufferedString.ts b/src/utils/bufferedString.ts
index 482c7402899bb157249cfb7882d327b7d9477912..4e45ef5d5bd7ec66776ece54e917282441cededb 100644
--- a/src/utils/bufferedString.ts
+++ b/src/utils/bufferedString.ts
@@ -40,7 +40,7 @@ export interface StringBuilder {
 export class NonBufferedString implements StringBuilder {
   // fatal: true makes invalid byte sequences (e.g. a lead byte followed by a
   // non-continuation byte) throw instead of silently decoding to U+FFFD.
-  private decoder = new TextDecoder("utf-8", { fatal: true });
+  private decoder = new TextDecoder("utf-8", { fatal: true, ignoreBOM: true });
   // Pieces appended since the last toString(), not yet folded into `string`.
   private pending: string[] = [];
   private string = "";
@@ -90,7 +90,7 @@ export class NonBufferedString implements StringBuilder {
 export class BufferedString implements StringBuilder {
   // fatal: true makes invalid byte sequences (e.g. a lead byte followed by a
   // non-continuation byte) throw instead of silently decoding to U+FFFD.
-  private decoder = new TextDecoder("utf-8", { fatal: true });
+  private decoder = new TextDecoder("utf-8", { fatal: true, ignoreBOM: true });
   private buffer: Uint8Array;
   private bufferOffset = 0;
   private string = "";