diff --git a/CMakeLists.txt b/CMakeLists.txt
index 66270a6..75b38c7 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -53,6 +53,7 @@ if (WINDOWS)
 endif (WINDOWS)
 
 if (NOT DEFINED CONAN_EXPORTED)
+    MESSAGE(WARNING, "Called from Conan. Not building test build.")
     # Add a definition for the test library
     target_compile_definitions(CreatureLibTests PRIVATE TESTS_BUILD)
 endif ()