Index: src/ControlStruct/ExceptDeclNew.cpp
===================================================================
--- src/ControlStruct/ExceptDeclNew.cpp	(revision 60e14fc3c8c725fa4bc7d54de2ebe22ea870089a)
+++ src/ControlStruct/ExceptDeclNew.cpp	(revision afdb74b47df46baca69fdd94ae046d3d0dbcfee1)
@@ -15,4 +15,6 @@
 
 #include "ExceptDecl.h"
+
+#include <sstream>
 
 #include "AST/Decl.hpp"
Index: src/ControlStruct/MLEMutator.cc
===================================================================
--- src/ControlStruct/MLEMutator.cc	(revision 60e14fc3c8c725fa4bc7d54de2ebe22ea870089a)
+++ src/ControlStruct/MLEMutator.cc	(revision afdb74b47df46baca69fdd94ae046d3d0dbcfee1)
@@ -25,5 +25,5 @@
 #include <memory>                          // for allocator_traits<>::value_...
 
-#include "Common/utility.h"                // for toString, operator+
+#include "Common/ToString.hpp"             // for toString
 #include "ControlStruct/LabelGenerator.h"  // for LabelGenerator
 #include "MLEMutator.h"