diff --git a/thriftpy2/parser/exc.py b/thriftpy2/parser/exc.py
index 037bed5..add8305 100644
--- a/thriftpy2/parser/exc.py
+++ b/thriftpy2/parser/exc.py
@@ -2,6 +2,8 @@
 
 from __future__ import absolute_import
 
+from warnings import warn
+
 
 class ThriftParserError(Exception):
     pass
@@ -13,3 +15,11 @@ class ThriftLexerError(ThriftParserError):
 
 class ThriftGrammarError(ThriftParserError):
     pass
+
+
+def __getattr__(name):
+    if name == "ThriftGrammerError":
+        warn("'ThriftGrammerError' is a typo of 'ThriftGrammarError'", DeprecationWarning)
+        return ThriftGrammarError
+
+    raise AttributeError("module %r has no attribute %r" % (__name__, name))