Index: src/Concurrency/Keywords.cc
===================================================================
--- src/Concurrency/Keywords.cc	(revision 8d7bef249652cc2b9854c7090c758bcd9ad9f613)
+++ src/Concurrency/Keywords.cc	(revision dbc2c2c1c5d8dcdec833f7bad119f889765fb5e8)
@@ -19,4 +19,5 @@
 #include <string>                  // for string, operator==
 
+#include "Common/GC.h"             // for new_static_root
 #include "Common/PassVisitor.h"    // for PassVisitor
 #include "Common/SemanticError.h"  // for SemanticError
@@ -203,5 +204,5 @@
 	};
 
-	Type* MutexKeyword::generic_func = new FunctionType{ noQualifiers, true };
+	Type* MutexKeyword::generic_func = new_static_root<FunctionType>( noQualifiers, true );
 
 	//-----------------------------------------------------------------------------