diff --git a/src/input/KeyEncoder.zig b/src/input/KeyEncoder.zig
index 4bac7ee6b..734885097 100644
--- a/src/input/KeyEncoder.zig
+++ b/src/input/KeyEncoder.zig
@@ -2067,7 +2067,7 @@ test "legacy: f1" {
     {
         enc.event.key = .f3;
         const actual = try enc.legacy(&buf);
-        try testing.expectEqualStrings("\x1b[1;5R", actual);
+        try testing.expectEqualStrings("\x1b[13;5~", actual);
     }
 
     // F4
diff --git a/src/input/function_keys.zig b/src/input/function_keys.zig
index 61af5b037..1156faf56 100644
--- a/src/input/function_keys.zig
+++ b/src/input/function_keys.zig
@@ -89,7 +89,7 @@ pub const keys = keys: {
     // Function Keys. todo: f13-f35 but we need to add to input.Key
     result.set(.f1, pcStyle("\x1b[1;{}P") ++ .{.{ .sequence = "\x1BOP" }});
     result.set(.f2, pcStyle("\x1b[1;{}Q") ++ .{.{ .sequence = "\x1BOQ" }});
-    result.set(.f3, pcStyle("\x1b[1;{}R") ++ .{.{ .sequence = "\x1BOR" }});
+    result.set(.f3, pcStyle("\x1b[13;{}~") ++ .{.{ .sequence = "\x1BOR" }});
     result.set(.f4, pcStyle("\x1b[1;{}S") ++ .{.{ .sequence = "\x1BOS" }});
     result.set(.f5, pcStyle("\x1b[15;{}~") ++ .{.{ .sequence = "\x1B[15~" }});
     result.set(.f6, pcStyle("\x1b[17;{}~") ++ .{.{ .sequence = "\x1B[17~" }});