diff --git a/src/main.cpp b/src/main.cpp
index 2c20da8..07615e0 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -824,13 +824,16 @@ void work() {
 }
 
 int main(int argc, char* argv[]) {
+	#define AS_STR(x) #x
 	argparse::ArgumentParser program("acpa",
-					 APP_VERSION,
+					 AS_STR(APP_VERSION),
 					 argparse::default_arguments::help,
 					 false);
+
 	program.add_argument("input_file")
 		.help("Source proof file")
 		.action([](const std::string& value) { return value; });
+
 	try {
 		program.parse_args(argc, argv);
 	} catch (const std::runtime_error& err) {
@@ -847,3 +850,4 @@ int main(int argc, char* argv[]) {
 	work();
 	return 0;
 }
+
diff --git a/xmake.lua b/xmake.lua
index 1ff671b..3ac57d1 100644
--- a/xmake.lua
+++ b/xmake.lua
@@ -14,7 +14,7 @@ target("build")
 	add_files("src/**.cpp")
 	-- add_includedirs("include/")
 	add_includedirs("third-party/")
-	add_defines("APP_VERSION=\"" .. app_version .. "\"")
+	add_defines("APP_VERSION=" .. app_version)
 	if is_mode("release") then
 		set_strip("all")
 		set_optimize("faster")