diff --git a/Makefile b/Makefile
index 4d1977f..b21e3ae 100644
--- a/Makefile
+++ b/Makefile
@@ -129,6 +129,7 @@ install: check
 
 clean:
 	@echo "Clean ..."
+	@sed -r "s/^(project\(${PKGNAME} VERSION ).*/\10\)/" -i ${FILE_VER}
 	@$(RM) -rd ${CMAKE_UI_BUILD_DIR}
 	@$(RM) -rd ${CMAKE_UI_BUILD_DIR}
 	@if [ -d ${CMAKE_UI_BUILD_DIR} ]; then \
diff --git a/source/CMakeLists.txt b/source/CMakeLists.txt
index d8ef1b0..a985bc6 100644
--- a/source/CMakeLists.txt
+++ b/source/CMakeLists.txt
@@ -1,5 +1,5 @@
 cmake_minimum_required(VERSION 3.9)
-project(libublsettingsui-gtk3 VERSION 1.0)
+project(libublsettingsui-gtk3 VERSION 0)
 include(GNUInstallDirs)
 
 find_package(PkgConfig REQUIRED)