diff --git a/CMakeLists.txt b/CMakeLists.txt
index b5e69e30..80a91bf2 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -543,6 +543,13 @@ if (BUILD_PYTHON_LANGUAGE_PACKAGE)
 	execute_process(
 		COMMAND "cmd.exe" "/k" "rmdir" "/s" "/q" "${PYTHON_INDEXER_DIR}" & exit
 	)
+	
+	add_custom_command(
+		TARGET ${LIB_PYTHON_PROJECT_NAME}
+		PRE_BUILD
+		COMMAND ${PROJECT_SOURCE_DIR}/script/update_python_indexer.sh
+		COMMENT "updating python indexer scripts"
+	)
 		
 else()