diff --git a/include/CLI/Error.hpp b/include/CLI/Error.hpp
index 944c9a397..45df83bb6 100644
--- a/include/CLI/Error.hpp
+++ b/include/CLI/Error.hpp
@@ -15,6 +15,7 @@
 // [CLI11:public_includes:end]
 
 // CLI library includes
+#include "Macros.hpp"
 #include "StringTools.hpp"
 
 namespace CLI {