diff --git a/CMakeLists.txt b/CMakeLists.txt
index b564f88..cbb100f 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -17,6 +17,8 @@ FILE(GLOB BOT_SOURCE_FILES
 
 add_library(twbl STATIC ${BOT_SOURCE_FILES})
 
+target_compile_options(twbl PRIVATE -std=gnu++17)
+
 include_directories(src)
 
 include(CTest)
diff --git a/src/bots/sample.h b/src/bots/sample.h
index de38f70..d498503 100644
--- a/src/bots/sample.h
+++ b/src/bots/sample.h
@@ -6,10 +6,13 @@
 
 namespace TWBL {
 
-class CSampleBot : CBaseBot
+class CSampleBot : public CBaseBot
 {
 public:
-	using CBaseBot::CBaseBot;
+	CSampleBot(const CServerBotStateIn *pStateIn, CServerBotStateOut *pStateOut) :
+		CBaseBot(pStateIn, pStateOut)
+	{
+	}
 
 	void Tick();
 };