diff --git a/Userland/Libraries/LibWeb/HTML/HTMLFormElement.cpp b/Userland/Libraries/LibWeb/HTML/HTMLFormElement.cpp
index 53c5c45137b..fb104c377a8 100644
--- a/Userland/Libraries/LibWeb/HTML/HTMLFormElement.cpp
+++ b/Userland/Libraries/LibWeb/HTML/HTMLFormElement.cpp
@@ -105,14 +105,14 @@ void HTMLFormElement::submit_form(RefPtr<HTMLElement> submitter, bool from_submi
     });
 
     if (effective_method == "get") {
-        url.set_query(urlencode(parameters));
+        url.set_query(urlencode(parameters, URL::PercentEncodeSet::ApplicationXWWWFormUrlencoded));
     }
 
     LoadRequest request;
     request.set_url(url);
 
     if (effective_method == "post") {
-        auto body = urlencode(parameters).to_byte_buffer();
+        auto body = urlencode(parameters, URL::PercentEncodeSet::ApplicationXWWWFormUrlencoded).to_byte_buffer();
         request.set_method("POST");
         request.set_header("Content-Type", "application/x-www-form-urlencoded");
         request.set_header("Content-Length", String::number(body.size()));
diff --git a/Userland/Libraries/LibWeb/URLEncoder.cpp b/Userland/Libraries/LibWeb/URLEncoder.cpp
index bad252e2b50..ed4ece6b79b 100644
--- a/Userland/Libraries/LibWeb/URLEncoder.cpp
+++ b/Userland/Libraries/LibWeb/URLEncoder.cpp
@@ -10,13 +10,13 @@
 
 namespace Web {
 
-String urlencode(const Vector<URLQueryParam>& pairs)
+String urlencode(const Vector<URLQueryParam>& pairs, URL::PercentEncodeSet percent_encode_set)
 {
     StringBuilder builder;
     for (size_t i = 0; i < pairs.size(); ++i) {
-        builder.append(URL::percent_encode(pairs[i].name));
+        builder.append(URL::percent_encode(pairs[i].name, percent_encode_set));
         builder.append('=');
-        builder.append(URL::percent_encode(pairs[i].value));
+        builder.append(URL::percent_encode(pairs[i].value, percent_encode_set));
         if (i != pairs.size() - 1)
             builder.append('&');
     }
diff --git a/Userland/Libraries/LibWeb/URLEncoder.h b/Userland/Libraries/LibWeb/URLEncoder.h
index 5b6a2268a88..5bd004f560a 100644
--- a/Userland/Libraries/LibWeb/URLEncoder.h
+++ b/Userland/Libraries/LibWeb/URLEncoder.h
@@ -16,6 +16,6 @@ struct URLQueryParam {
     String value;
 };
 
-String urlencode(const Vector<URLQueryParam>&);
+String urlencode(const Vector<URLQueryParam>&, URL::PercentEncodeSet);
 
 }