diff --git a/src/main.zig b/src/main.zig
index a8b024d2..9341072e 100644
--- a/src/main.zig
+++ b/src/main.zig
@@ -62,7 +62,7 @@ pub fn main() !void {
     const file = try std.fs.cwd().openFile("test.html", .{});
     defer file.close();
 
-    doc = try parser.documentHTMLParse(file.reader());
+    doc = try parser.documentHTMLParse(file.reader(), "UTF-8");
     defer parser.documentHTMLClose(doc) catch |err| {
         std.debug.print("documentHTMLClose error: {s}\n", .{@errorName(err)});
     };
diff --git a/src/main_shell.zig b/src/main_shell.zig
index ea9276fa..35d1fb39 100644
--- a/src/main_shell.zig
+++ b/src/main_shell.zig
@@ -43,7 +43,7 @@ pub fn main() !void {
     const file = try std.fs.cwd().openFile("test.html", .{});
     defer file.close();
 
-    doc = try parser.documentHTMLParse(file.reader());
+    doc = try parser.documentHTMLParse(file.reader(), "UTF-8");
     defer parser.documentHTMLClose(doc) catch |err| {
         std.debug.print("documentHTMLClose error: {s}\n", .{@errorName(err)});
     };
diff --git a/src/netsurf.zig b/src/netsurf.zig
index 5633515b..bd639e0a 100644
--- a/src/netsurf.zig
+++ b/src/netsurf.zig
@@ -1411,10 +1411,10 @@ fn parserErr(err: HubbubErr) ParserError!void {
 // The caller is responsible for closing the document.
 pub fn documentHTMLParseFromStr(str: []const u8) !*DocumentHTML {
     var fbs = std.io.fixedBufferStream(str);
-    return try documentHTMLParse(fbs.reader());
+    return try documentHTMLParse(fbs.reader(), "UTF-8");
 }
 
-pub fn documentHTMLParse(reader: anytype) !*DocumentHTML {
+pub fn documentHTMLParse(reader: anytype, enc: ?[:0]const u8) !*DocumentHTML {
     var parser: ?*c.dom_hubbub_parser = undefined;
     var doc: ?*c.dom_document = undefined;
     var err: c.hubbub_error = undefined;
@@ -1429,6 +1429,8 @@ pub fn documentHTMLParse(reader: anytype) !*DocumentHTML {
         .daf = null,
     };
 
+    if (enc) |e| params.enc = e;
+
     err = c.dom_hubbub_parser_create(&params, &parser, &doc);
     try parserErr(err);
     defer c.dom_hubbub_parser_destroy(parser);
diff --git a/src/run_tests.zig b/src/run_tests.zig
index 05c9354d..8369ec61 100644
--- a/src/run_tests.zig
+++ b/src/run_tests.zig
@@ -43,7 +43,7 @@ fn testExecFn(
     const file = try std.fs.cwd().openFile("test.html", .{});
     defer file.close();
 
-    doc = try parser.documentHTMLParse(file.reader());
+    doc = try parser.documentHTMLParse(file.reader(), "UTF-8");
     defer parser.documentHTMLClose(doc) catch |err| {
         std.debug.print("documentHTMLClose error: {s}\n", .{@errorName(err)});
     };
@@ -119,6 +119,6 @@ test "bug document html parsing #4" {
     const file = try std.fs.cwd().openFile("tests/html/bug-html-parsing-4.html", .{});
     defer file.close();
 
-    doc = try parser.documentHTMLParse(file.reader());
+    doc = try parser.documentHTMLParse(file.reader(), null);
     parser.documentHTMLClose(doc) catch {};
 }
diff --git a/src/wpt/run.zig b/src/wpt/run.zig
index 3d7ca437..65d5ee67 100644
--- a/src/wpt/run.zig
+++ b/src/wpt/run.zig
@@ -21,7 +21,7 @@ pub fn run(arena: *std.heap.ArenaAllocator, comptime dir: []const u8, f: []const
     const file = try std.fs.cwd().openFile(f, .{});
     defer file.close();
 
-    const html_doc = try parser.documentHTMLParse(file.reader());
+    const html_doc = try parser.documentHTMLParse(file.reader(), "UTF-8");
     const doc = parser.documentHTMLToDocument(html_doc);
 
     const dirname = fspath.dirname(f[dir.len..]) orelse unreachable;