diff --git a/Userland/Libraries/LibCore/DateTime.cpp b/Userland/Libraries/LibCore/DateTime.cpp
index 9554c3743b..6d5b62ba92 100644
--- a/Userland/Libraries/LibCore/DateTime.cpp
+++ b/Userland/Libraries/LibCore/DateTime.cpp
@@ -284,7 +284,7 @@ DeprecatedString DateTime::to_deprecated_string(StringView format) const
     return MUST(to_string(format)).to_deprecated_string();
 }
 
-Optional<DateTime> DateTime::parse(StringView format, DeprecatedString const& string)
+Optional<DateTime> DateTime::parse(StringView format, StringView string)
 {
     unsigned format_pos = 0;
 
diff --git a/Userland/Libraries/LibCore/DateTime.h b/Userland/Libraries/LibCore/DateTime.h
index 0ace2eeca9..d15dc9f40c 100644
--- a/Userland/Libraries/LibCore/DateTime.h
+++ b/Userland/Libraries/LibCore/DateTime.h
@@ -37,7 +37,7 @@ public:
     static DateTime create(int year, int month = 1, int day = 1, int hour = 0, int minute = 0, int second = 0);
     static DateTime now();
     static DateTime from_timestamp(time_t);
-    static Optional<DateTime> parse(StringView format, DeprecatedString const& string);
+    static Optional<DateTime> parse(StringView format, StringView string);
 
     bool operator<(DateTime const& other) const { return m_timestamp < other.m_timestamp; }
     bool operator==(DateTime const& other) const { return m_timestamp == other.m_timestamp; }