diff --git a/Cantera/clib/src/ctfunc.cpp b/Cantera/clib/src/ctfunc.cpp
index 8e7fd442a..646c4ba9e 100755
--- a/Cantera/clib/src/ctfunc.cpp
+++ b/Cantera/clib/src/ctfunc.cpp
@@ -17,10 +17,11 @@
 #include "Func1.h"
 #include "ctexceptions.h"
 
-using namespace Cantera;
 
 #include "Cabinet.h"
 
+using namespace Cantera;
+using namespace std;
 
 typedef Func1 func_t;
 
diff --git a/Cantera/clib/src/ctreactor.cpp b/Cantera/clib/src/ctreactor.cpp
index 0e8fff638..8b12ae5c2 100755
--- a/Cantera/clib/src/ctreactor.cpp
+++ b/Cantera/clib/src/ctreactor.cpp
@@ -27,6 +27,8 @@
 #include "Storage.h"
 
 using namespace CanteraZeroD;
+using namespace Cantera;
+using namespace std;
 
 typedef ReactorBase reactor_t;
 typedef ReactorNet  reactornet_t;
diff --git a/Cantera/clib/src/ctxml.cpp b/Cantera/clib/src/ctxml.cpp
index 57b237293..7c1049ebf 100644
--- a/Cantera/clib/src/ctxml.cpp
+++ b/Cantera/clib/src/ctxml.cpp
@@ -24,6 +24,7 @@
 
 using namespace std;
 using namespace Cantera;
+using namespace ctml;
 
 
 // Assign storage for the static member of the Templated Cabinet class