diff --git a/src/http/handler.zig b/src/http/handler.zig
index 507d997..84ee063 100644
--- a/src/http/handler.zig
+++ b/src/http/handler.zig
@@ -169,9 +169,13 @@ fn handleWeatherInternal(
         }
     } else try ansi.render(req_alloc, weather, .{ .use_imperial = use_imperial });
 
-    if (res.content_type != .JSON) {
+    // Add coordinates header using response allocator
+    const coords_header = try std.fmt.allocPrint(res.arena, "{d:.4},{d:.4}", .{ location.coords.latitude, location.coords.longitude });
+    res.headers.add("X-Location-Coordinates", coords_header);
+
+    if (res.content_type != .JSON)
         res.content_type = .TEXT;
-    }
+
     res.body = output;
 }