diff --git a/thriftpy2/parser/__init__.py b/thriftpy2/parser/__init__.py
index 2f4ff2c..03c96ce 100644
--- a/thriftpy2/parser/__init__.py
+++ b/thriftpy2/parser/__init__.py
@@ -181,7 +181,7 @@ def get_definition(thrift, name, lineno):
 def load_fp(source, module_name):
     """Load thrift file like object as a module.
     """
-    thrift = parse_fp(source, module_name)
+    thrift = parse_fp(source, module_name, enable_cache=False)
     sys.modules[module_name] = thrift
     return thrift