diff --git a/test/Misc/CMakeLists.txt b/test/Misc/CMakeLists.txt
index 68d44c8f..65c35d6f 100644
--- a/test/Misc/CMakeLists.txt
+++ b/test/Misc/CMakeLists.txt
@@ -3,6 +3,7 @@
 # MIT License
 
 add_executable(MiscTests
+    empty.cpp
 	FloatParts.cpp
 	StringWriter.cpp
 	TypeTraits.cpp
diff --git a/test/Misc/empty.cpp b/test/Misc/empty.cpp
new file mode 100644
index 00000000..b1436217
--- /dev/null
+++ b/test/Misc/empty.cpp
@@ -0,0 +1,7 @@
+// ArduinoJson - arduinojson.org
+// Copyright Benoit Blanchon 2014-2019
+// MIT License
+
+// catch.hpp mutes several warnings, this file allows to detect them
+
+#include "ArduinoJson.h"