diff --git a/Libraries/LibURL/Pattern/PatternParser.cpp b/Libraries/LibURL/Pattern/PatternParser.cpp
index 53e9539f638..844f46f2187 100644
--- a/Libraries/LibURL/Pattern/PatternParser.cpp
+++ b/Libraries/LibURL/Pattern/PatternParser.cpp
@@ -311,7 +311,7 @@ PatternErrorOr<Vector<Part>> PatternParser::parse(Utf8View const& input, Options
                 prefix = char_token->value;
 
             // 3. If prefix is not the empty string and not options’s prefix code point:
-            if (!prefix.is_empty() && options.prefix_code_point.has_value() && prefix != String::from_code_point(*options.prefix_code_point)) {
+            if (!prefix.is_empty() && (!options.prefix_code_point.has_value() || prefix != String::from_code_point(*options.prefix_code_point))) {
                 // 1. Append prefix to the end of parser’s pending fixed value.
                 parser.m_pending_fixed_value.append(prefix);
 
diff --git a/Tests/LibWeb/Text/expected/wpt-import/urlpattern/urlpattern.any.txt b/Tests/LibWeb/Text/expected/wpt-import/urlpattern/urlpattern.any.txt
index 1b2d5cabebe..40426470caa 100644
--- a/Tests/LibWeb/Text/expected/wpt-import/urlpattern/urlpattern.any.txt
+++ b/Tests/LibWeb/Text/expected/wpt-import/urlpattern/urlpattern.any.txt
@@ -2,8 +2,8 @@ Harness status: OK
 
 Found 354 tests
 
-352 Pass
-2 Fail
+353 Pass
+1 Fail
 Pass	Loading data...
 Pass	Pattern: [{"pathname":"/foo/bar"}] Inputs: [{"pathname":"/foo/bar"}]
 Pass	Pattern: [{"pathname":"/foo/bar"}] Inputs: [{"pathname":"/foo/ba"}]
@@ -282,7 +282,7 @@ Pass	Pattern: [{"hostname":"[*\\:1]"}] Inputs: [{"hostname":"[::ab:1]"}]
 Pass	Pattern: [{"hostname":"*\\:1]"}] Inputs: undefined
 Pass	Pattern: ["https://foo{{@}}example.com"] Inputs: ["https://foo@example.com"]
 Pass	Pattern: ["https://foo{@example.com"] Inputs: ["https://foo@example.com"]
-Fail	Pattern: ["data\\:text/javascript,let x = 100/:tens?5;"] Inputs: ["data:text/javascript,let x = 100/5;"]
+Pass	Pattern: ["data\\:text/javascript,let x = 100/:tens?5;"] Inputs: ["data:text/javascript,let x = 100/5;"]
 Pass	Pattern: [{"pathname":"/:id/:id"}] Inputs: undefined
 Pass	Pattern: [{"pathname":"/foo","baseURL":""}] Inputs: undefined
 Pass	Pattern: ["/foo",""] Inputs: undefined