diff --git a/python/ray/includes/function_descriptor.pxd b/python/ray/includes/function_descriptor.pxd
index 86090f68c230..5124405772b8 100644
--- a/python/ray/includes/function_descriptor.pxd
+++ b/python/ray/includes/function_descriptor.pxd
@@ -32,7 +32,7 @@ cdef extern from "src/ray/protobuf/common.pb.h" nogil:
 
 cdef extern from "ray/common/function_descriptor.h" nogil:
     cdef cppclass CFunctionDescriptorInterface \
-            "ray::CFunctionDescriptorInterface":
+            "ray::FunctionDescriptorInterface":
         CFunctionDescriptorType Type()
         c_string ToString()
         c_string Serialize()