diff --git a/lib/actions/ferm/invert/qphix/syssolver_mdagm_clover_qphix_iter_refine_w.h b/lib/actions/ferm/invert/qphix/syssolver_mdagm_clover_qphix_iter_refine_w.h
index 90f71571f..20ae5b39a 100644
--- a/lib/actions/ferm/invert/qphix/syssolver_mdagm_clover_qphix_iter_refine_w.h
+++ b/lib/actions/ferm/invert/qphix/syssolver_mdagm_clover_qphix_iter_refine_w.h
@@ -37,6 +37,7 @@
 #include "qphix_singleton.h"
 
 using namespace QDP;
+using namespace std;
 
 namespace Chroma
 {
diff --git a/lib/actions/ferm/invert/qphix/syssolver_mdagm_clover_qphix_w.h b/lib/actions/ferm/invert/qphix/syssolver_mdagm_clover_qphix_w.h
index 643aa9b04..0105a1129 100644
--- a/lib/actions/ferm/invert/qphix/syssolver_mdagm_clover_qphix_w.h
+++ b/lib/actions/ferm/invert/qphix/syssolver_mdagm_clover_qphix_w.h
@@ -38,7 +38,9 @@
 #include "qphix_singleton.h"
 #include "actions/ferm/invert/qphix/qphix_vec_traits.h"
 #include "qphix/blas_new_c.h"
+
 using namespace QDP;
+using namespace std;
 
 namespace Chroma
 {