diff --git a/eo/src/other/eoString.h b/eo/src/other/eoString.h
index e37adba1..85843411 100644
--- a/eo/src/other/eoString.h
+++ b/eo/src/other/eoString.h
@@ -29,6 +29,11 @@
 #include <string>		
 #include <stdexcept>
 
+
+#include <EO.h>
+
+using namespace std;
+
 //-----------------------------------------------------------------------------
 // eoString
 //-----------------------------------------------------------------------------
diff --git a/eo/src/utils/rnd_generators.h b/eo/src/utils/rnd_generators.h
index 90fdd290..d1058ab1 100644
--- a/eo/src/utils/rnd_generators.h
+++ b/eo/src/utils/rnd_generators.h
@@ -32,6 +32,7 @@
 #define eoRND_GENERATORS_H
 
 #include "eoRNG.h"
+#include <stdexcept>
 
 /**
    The class uniform_generator can be used in the STL generate function