diff --git a/AK/String.cpp b/AK/String.cpp
index 17eb6313d1b..6bcd168acba 100644
--- a/AK/String.cpp
+++ b/AK/String.cpp
@@ -77,7 +77,7 @@ ErrorOr<String> String::repeated(u32 code_point, size_t count)
     return result;
 }
 
-StringView String::bytes_as_string_view() const
+StringView String::bytes_as_string_view() const&
 {
     return StringView(bytes());
 }
@@ -197,7 +197,7 @@ u32 String::ascii_case_insensitive_hash() const
     return case_insensitive_string_hash(reinterpret_cast<char const*>(bytes().data()), bytes().size());
 }
 
-Utf8View String::code_points() const
+Utf8View String::code_points() const&
 {
     return Utf8View(bytes_as_string_view());
 }
diff --git a/AK/String.h b/AK/String.h
index 99417acb4b8..418426cd441 100644
--- a/AK/String.h
+++ b/AK/String.h
@@ -107,13 +107,15 @@ public:
     ErrorOr<String> substring_from_byte_offset_with_shared_superstring(size_t start) const;
 
     // Returns an iterable view over the Unicode code points.
-    [[nodiscard]] Utf8View code_points() const;
+    [[nodiscard]] Utf8View code_points() const&;
+    [[nodiscard]] Utf8View code_points() const&& = delete;
 
     // Returns true if the String is zero-length.
     [[nodiscard]] bool is_empty() const;
 
     // Returns a StringView covering the full length of the string. Note that iterating this will go byte-at-a-time, not code-point-at-a-time.
-    [[nodiscard]] StringView bytes_as_string_view() const;
+    [[nodiscard]] StringView bytes_as_string_view() const&;
+    [[nodiscard]] StringView bytes_as_string_view() const&& = delete;
 
     [[nodiscard]] size_t count(StringView needle) const { return StringUtils::count(bytes_as_string_view(), needle); }