diff --git a/Userland/Libraries/LibDiff/Generator.cpp b/Userland/Libraries/LibDiff/Generator.cpp
index 677022b570..c952ea8702 100644
--- a/Userland/Libraries/LibDiff/Generator.cpp
+++ b/Userland/Libraries/LibDiff/Generator.cpp
@@ -72,9 +72,9 @@ ErrorOr<Vector<Hunk>> from_text(StringView old_text, StringView new_text)
             cur_hunk = { i, j, {}, {} };
         }
         if (direction == Direction::Down) {
-            TRY(cur_hunk.added_lines.try_append(new_lines[j]));
+            TRY(cur_hunk.added_lines.try_append(TRY(String::from_utf8(new_lines[j]))));
         } else if (direction == Direction::Right) {
-            TRY(cur_hunk.removed_lines.try_append(old_lines[i]));
+            TRY(cur_hunk.removed_lines.try_append(TRY(String::from_utf8(old_lines[i]))));
         }
 
         return {};
diff --git a/Userland/Libraries/LibDiff/Hunks.cpp b/Userland/Libraries/LibDiff/Hunks.cpp
index 4193566e10..cd7e54cb6c 100644
--- a/Userland/Libraries/LibDiff/Hunks.cpp
+++ b/Userland/Libraries/LibDiff/Hunks.cpp
@@ -41,12 +41,12 @@ ErrorOr<Vector<Hunk>> parse_hunks(StringView diff)
         hunk.target_start_line = current_location.target_start_line;
 
         while (line_index < diff_lines.size() && diff_lines[line_index][0] == '-') {
-            TRY(hunk.removed_lines.try_append(diff_lines[line_index].substring_view(1, diff_lines[line_index].length() - 1)));
+            TRY(hunk.removed_lines.try_append(TRY(String::from_utf8(diff_lines[line_index].substring_view(1, diff_lines[line_index].length() - 1)))));
             current_location.apply_offset(1, HunkLocation::LocationType::Original);
             ++line_index;
         }
         while (line_index < diff_lines.size() && diff_lines[line_index][0] == '+') {
-            TRY(hunk.added_lines.try_append(diff_lines[line_index].substring_view(1, diff_lines[line_index].length() - 1)));
+            TRY(hunk.added_lines.try_append(TRY(String::from_utf8(diff_lines[line_index].substring_view(1, diff_lines[line_index].length() - 1)))));
             current_location.apply_offset(1, HunkLocation::LocationType::Target);
             ++line_index;
         }
diff --git a/Userland/Libraries/LibDiff/Hunks.h b/Userland/Libraries/LibDiff/Hunks.h
index f22b012260..03ebd0542a 100644
--- a/Userland/Libraries/LibDiff/Hunks.h
+++ b/Userland/Libraries/LibDiff/Hunks.h
@@ -6,7 +6,7 @@
 
 #pragma once
 
-#include <AK/DeprecatedString.h>
+#include <AK/String.h>
 #include <AK/StringView.h>
 #include <AK/Vector.h>
 
@@ -29,8 +29,8 @@ struct HunkLocation {
 struct Hunk {
     size_t original_start_line { 0 };
     size_t target_start_line { 0 };
-    Vector<DeprecatedString> removed_lines;
-    Vector<DeprecatedString> added_lines;
+    Vector<String> removed_lines;
+    Vector<String> added_lines;
 };
 
 ErrorOr<Vector<Hunk>> parse_hunks(StringView diff);