diff --git a/include/internal/catch_stream.h b/include/internal/catch_stream.h
index 1bf5ee18..d8deebab 100644
--- a/include/internal/catch_stream.h
+++ b/include/internal/catch_stream.h
@@ -15,6 +15,7 @@
 #include <streambuf>
 #include <ostream>
 #include <fstream>
+#include <memory>
 
 namespace Catch {