diff --git a/src/pch/system.h b/src/pch/system.h
index 6c277b279..b327faa86 100644
--- a/src/pch/system.h
+++ b/src/pch/system.h
@@ -14,7 +14,5 @@
 #include <memory>
 
 #include <boost/algorithm/string.hpp>
-#include "cantera/base/fmt.h"
-#include "cantera/base/AnyMap.h"
 
 #endif