diff --git a/src/file_type_config.zig b/src/file_type_config.zig
index 779db97..9a2846c 100644
--- a/src/file_type_config.zig
+++ b/src/file_type_config.zig
@@ -93,9 +93,11 @@ pub fn get(file_type_name: []const u8) !?@This() {
 }
 
 pub fn get_config_file_path(allocator: std.mem.Allocator, file_type: []const u8) ![]u8 {
-    var stream: std.Io.Writer.Allocating = .initOwnedSlice(allocator, try get_config_dir_path(allocator));
+    const config_dir_path = try get_config_dir_path(allocator);
+    var stream: std.Io.Writer.Allocating = .initOwnedSlice(allocator, config_dir_path);
     defer stream.deinit();
     const writer = &stream.writer;
+    writer.end = config_dir_path.len;
     _ = try writer.writeAll(file_type);
     _ = try writer.writeAll(".conf");
     return stream.toOwnedSlice();
diff --git a/src/keybind/keybind.zig b/src/keybind/keybind.zig
index 385e425..e4839ae 100644
--- a/src/keybind/keybind.zig
+++ b/src/keybind/keybind.zig
@@ -562,12 +562,14 @@ const BindingSet = struct {
 
         for (self.press.items) |binding| {
             const cmd = binding.commands[0].command;
-            var hint: std.Io.Writer.Allocating = if (hints_map.get(cmd)) |previous|
-                .initOwnedSlice(allocator, previous)
-            else
-                .init(allocator);
+            var end: usize = 0;
+            var hint: std.Io.Writer.Allocating = if (hints_map.get(cmd)) |previous| blk: {
+                end = previous.len;
+                break :blk .initOwnedSlice(allocator, previous);
+            } else .init(allocator);
             defer hint.deinit();
             const writer = &hint.writer;
+            writer.end = end;
             if (hint.written().len > 0) try writer.writeAll(", ");
             const count = binding.key_events.len;
             for (binding.key_events, 0..) |key_, n| {