diff --git a/modules/beast_core/files/File.cpp b/modules/beast_core/files/File.cpp
index 66b41c9dd..a8312b735 100644
--- a/modules/beast_core/files/File.cpp
+++ b/modules/beast_core/files/File.cpp
@@ -1064,6 +1064,6 @@ public:
     }
 };
 
-BEAST_DEFINE_TESTSUITE (File,beast_core,beast);
+BEAST_DEFINE_TESTSUITE_MANUAL (File,beast_core,beast);
 
 } // beast