diff --git a/Tests/LibRegex/Regex.cpp b/Tests/LibRegex/Regex.cpp
index 31a22bdddf..9097de4d1a 100644
--- a/Tests/LibRegex/Regex.cpp
+++ b/Tests/LibRegex/Regex.cpp
@@ -125,7 +125,7 @@ TEST_CASE(parser_error_parens)
     PosixExtendedParser p(l);
     p.parse();
     EXPECT(p.has_error());
-    EXPECT(p.error() == Error::EmptySubExpression);
+    EXPECT(p.error() == regex::Error::EmptySubExpression);
 }
 
 TEST_CASE(parser_error_special_characters_used_at_wrong_place)
@@ -145,7 +145,7 @@ TEST_CASE(parser_error_special_characters_used_at_wrong_place)
         l.set_source(pattern);
         p.parse();
         EXPECT(p.has_error());
-        EXPECT(p.error() == Error::InvalidRepetitionMarker);
+        EXPECT(p.error() == regex::Error::InvalidRepetitionMarker);
 
         // After vertical line
         b.clear();
@@ -155,7 +155,7 @@ TEST_CASE(parser_error_special_characters_used_at_wrong_place)
         l.set_source(pattern);
         p.parse();
         EXPECT(p.has_error());
-        EXPECT(p.error() == Error::InvalidRepetitionMarker);
+        EXPECT(p.error() == regex::Error::InvalidRepetitionMarker);
 
         // After circumflex
         b.clear();
@@ -165,7 +165,7 @@ TEST_CASE(parser_error_special_characters_used_at_wrong_place)
         l.set_source(pattern);
         p.parse();
         EXPECT(p.has_error());
-        EXPECT(p.error() == Error::InvalidRepetitionMarker);
+        EXPECT(p.error() == regex::Error::InvalidRepetitionMarker);
 
         // After dollar
         b.clear();
@@ -175,7 +175,7 @@ TEST_CASE(parser_error_special_characters_used_at_wrong_place)
         l.set_source(pattern);
         p.parse();
         EXPECT(p.has_error());
-        EXPECT(p.error() == Error::InvalidRepetitionMarker);
+        EXPECT(p.error() == regex::Error::InvalidRepetitionMarker);
 
         // After left parens
         b.clear();
@@ -186,7 +186,7 @@ TEST_CASE(parser_error_special_characters_used_at_wrong_place)
         l.set_source(pattern);
         p.parse();
         EXPECT(p.has_error());
-        EXPECT(p.error() == Error::InvalidRepetitionMarker);
+        EXPECT(p.error() == regex::Error::InvalidRepetitionMarker);
     }
 }
 
@@ -199,25 +199,25 @@ TEST_CASE(parser_error_vertical_line_used_at_wrong_place)
     l.set_source("|asdf");
     p.parse();
     EXPECT(p.has_error());
-    EXPECT(p.error() == Error::EmptySubExpression);
+    EXPECT(p.error() == regex::Error::EmptySubExpression);
 
     // Last in ere
     l.set_source("asdf|");
     p.parse();
     EXPECT(p.has_error());
-    EXPECT(p.error() == Error::EmptySubExpression);
+    EXPECT(p.error() == regex::Error::EmptySubExpression);
 
     // After left parens
     l.set_source("(|asdf)");
     p.parse();
     EXPECT(p.has_error());
-    EXPECT(p.error() == Error::EmptySubExpression);
+    EXPECT(p.error() == regex::Error::EmptySubExpression);
 
     // Proceed right parens
     l.set_source("(asdf)|");
     p.parse();
     EXPECT(p.has_error());
-    EXPECT(p.error() == Error::EmptySubExpression);
+    EXPECT(p.error() == regex::Error::EmptySubExpression);
 }
 
 TEST_CASE(catch_all_first)
@@ -687,7 +687,7 @@ TEST_CASE(ECMA262_match)
             regex_dbg.print_bytecode(re);
             dbgln("\n");
         }
-        EXPECT_EQ(re.parser_result.error, Error::NoError);
+        EXPECT_EQ(re.parser_result.error, regex::Error::NoError);
         EXPECT_EQ(re.match(test.subject).success, test.matches);
     }
 }
@@ -734,7 +734,7 @@ TEST_CASE(ECMA262_unicode_match)
             dbgln("\n");
         }
 
-        EXPECT_EQ(re.parser_result.error, Error::NoError);
+        EXPECT_EQ(re.parser_result.error, regex::Error::NoError);
         EXPECT_EQ(re.match(view).success, test.matches);
     }
 }
@@ -809,7 +809,7 @@ TEST_CASE(ECMA262_property_match)
             dbgln("\n");
         }
 
-        EXPECT_EQ(re.parser_result.error, Error::NoError);
+        EXPECT_EQ(re.parser_result.error, regex::Error::NoError);
         EXPECT_EQ(re.match(view).success, test.matches);
     }
 }
@@ -842,7 +842,7 @@ TEST_CASE(replace)
             regex_dbg.print_bytecode(re);
             dbgln("\n");
         }
-        EXPECT_EQ(re.parser_result.error, Error::NoError);
+        EXPECT_EQ(re.parser_result.error, regex::Error::NoError);
         EXPECT_EQ(re.replace(test.subject, test.replacement), test.expected);
     }
 }
diff --git a/Userland/Libraries/LibRegex/Forward.h b/Userland/Libraries/LibRegex/Forward.h
index 0c5516f7dd..25cf3ba25b 100644
--- a/Userland/Libraries/LibRegex/Forward.h
+++ b/Userland/Libraries/LibRegex/Forward.h
@@ -34,7 +34,6 @@ class RegexStringView;
 }
 
 using regex::ECMA262Parser;
-using regex::Error;
 using regex::Lexer;
 using regex::PosixExtendedParser;
 using regex::RegexStringView;
diff --git a/Userland/Libraries/LibRegex/RegexError.h b/Userland/Libraries/LibRegex/RegexError.h
index 57cc5527f1..5a4428c93f 100644
--- a/Userland/Libraries/LibRegex/RegexError.h
+++ b/Userland/Libraries/LibRegex/RegexError.h
@@ -81,5 +81,4 @@ inline String get_error_string(Error error)
 }
 }
 
-using regex::Error;
 using regex::get_error_string;
diff --git a/Userland/Utilities/grep.cpp b/Userland/Utilities/grep.cpp
index 7f67535e9e..cf74d5d52d 100644
--- a/Userland/Utilities/grep.cpp
+++ b/Userland/Utilities/grep.cpp
@@ -127,7 +127,7 @@ int main(int argc, char** argv)
         options |= PosixFlags::Insensitive;
 
     auto grep_logic = [&](auto&& re) {
-        if (re.parser_result.error != Error::NoError) {
+        if (re.parser_result.error != regex::Error::NoError) {
             return 1;
         }
 
diff --git a/Userland/Utilities/pgrep.cpp b/Userland/Utilities/pgrep.cpp
index 3dc85091fe..419bbb3c39 100644
--- a/Userland/Utilities/pgrep.cpp
+++ b/Userland/Utilities/pgrep.cpp
@@ -32,7 +32,7 @@ int main(int argc, char** argv)
         options |= PosixFlags::Insensitive;
 
     Regex<PosixExtended> re(pattern, options);
-    if (re.parser_result.error != Error::NoError) {
+    if (re.parser_result.error != regex::Error::NoError) {
         return 1;
     }
 
diff --git a/Userland/Utilities/run-tests.cpp b/Userland/Utilities/run-tests.cpp
index cd00f4075d..8c6645a547 100644
--- a/Userland/Utilities/run-tests.cpp
+++ b/Userland/Utilities/run-tests.cpp
@@ -337,7 +337,7 @@ int main(int argc, char** argv)
         exclude_pattern = config->read_entry("Global", "NotTestsPattern", "$^"); // default is match nothing (aka match end then beginning)
 
     Regex<PosixExtended> exclude_regex(exclude_pattern, {});
-    if (exclude_regex.parser_result.error != Error::NoError) {
+    if (exclude_regex.parser_result.error != regex::Error::NoError) {
         warnln("Exclude pattern \"{}\" is invalid", exclude_pattern);
         return 1;
     }
@@ -346,7 +346,7 @@ int main(int argc, char** argv)
     // in the Testrunner
     auto skip_regex_pattern = config->read_entry("Global", "SkipRegex", "$^");
     Regex<PosixExtended> skip_regex { skip_regex_pattern, {} };
-    if (skip_regex.parser_result.error != Error::NoError) {
+    if (skip_regex.parser_result.error != regex::Error::NoError) {
         warnln("SkipRegex pattern \"{}\" is invalid", skip_regex_pattern);
         return 1;
     }