diff --git a/lib/docs/wasm/main.zig b/lib/docs/wasm/main.zig
index bee3e4acbc..586534d2ae 100644
--- a/lib/docs/wasm/main.zig
+++ b/lib/docs/wasm/main.zig
@@ -803,6 +803,7 @@ fn unpackInner(tar_bytes: []u8) !void {
                 if (std.mem.endsWith(u8, tar_file.name, ".zig")) {
                     log.debug("found file: '{s}'", .{tar_file.name});
                     const file_name = try gpa.dupe(u8, tar_file.name);
+                    std.mem.replaceScalar(u8, file_name, '\\', '/');
                     if (std.mem.indexOfScalar(u8, file_name, '/')) |pkg_name_end| {
                         const pkg_name = file_name[0..pkg_name_end];
                         const gop = try Walk.modules.getOrPut(gpa, pkg_name);