diff --git a/plugin/python/CMakeLists.txt b/plugin/python/CMakeLists.txt
index c851b4fd30bbe270893be20fd109e2a319895bd0..7b5fd03e3c9c3462f0d5d696353a8d6a5c5e86ac 100644
--- a/plugin/python/CMakeLists.txt
+++ b/plugin/python/CMakeLists.txt
@@ -2,12 +2,12 @@ cmake_minimum_required(VERSION 2.6)
 
 if (PROTOBUF_FOUND)
     ADD_CUSTOM_COMMAND(
-        OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/protocol_pb2.py
-        COMMAND ${PROTOBUF_PROTOC_EXECUTABLE} --python_out  ${CMAKE_CURRENT_BINARY_DIR} --proto_path ${CMAKE_CURRENT_BINARY_DIR}/../../include/transport/ ${CMAKE_CURRENT_BINARY_DIR}/../../include/transport/protocol.proto
+        OUTPUT ${CMAKE_CURRENT_SOURCE_DIR}/protocol_pb2.py
+        COMMAND ${PROTOBUF_PROTOC_EXECUTABLE} --python_out  ${CMAKE_CURRENT_SOURCE_DIR} --proto_path ${CMAKE_CURRENT_SOURCE_DIR}/../../include/transport/ ${CMAKE_CURRENT_SOURCE_DIR}/../../include/transport/protocol.proto
         COMMENT "Running Python protocol buffer compiler on protocol.proto"
-        DEPENDS ${CMAKE_CURRENT_BINARY_DIR}/../../include/transport/protocol.proto
+        DEPENDS ${CMAKE_CURRENT_SOURCE_DIR}/../../include/transport/protocol.proto
     )
-    ADD_CUSTOM_TARGET(pb-python ALL DEPENDS ${CMAKE_CURRENT_BINARY_DIR}/protocol_pb2.py)
+    ADD_CUSTOM_TARGET(pb-python ALL DEPENDS ${CMAKE_CURRENT_SOURCE_DIR}/protocol_pb2.py)
 endif()