diff --git a/_python_multipart_loader.py b/_python_multipart_loader.py
index c30eee0..7d34377 100644
--- a/_python_multipart_loader.py
+++ b/_python_multipart_loader.py
@@ -23,7 +23,7 @@ def find_spec(
             if multipart := importlib.util.find_spec("multipart"):
                 return multipart
 
-            warnings.warn("Please use `import python_multipart` instead", FutureWarning, stacklevel=2)
+            warnings.warn("Please use `import python_multipart` instead.", FutureWarning, stacklevel=2)
             sys.modules["multipart"] = importlib.import_module("python_multipart")
             return importlib.util.find_spec("python_multipart")
         finally: