diff --git a/msgpack/_packer.pyx b/msgpack/_packer.pyx
index 8cf3c05..2a768b0 100644
--- a/msgpack/_packer.pyx
+++ b/msgpack/_packer.pyx
@@ -341,7 +341,7 @@ cdef class Packer(object):
     def reset(self):
         """Reset internal buffer.
 
-        This method is usaful only when autoreset=False.
+        This method is useful only when autoreset=False.
         """
         self.pk.length = 0