diff --git a/Examples/csharp/callback/example.i b/Examples/csharp/callback/example.i
index 90beda01a..cf61ef9d2 100644
--- a/Examples/csharp/callback/example.i
+++ b/Examples/csharp/callback/example.i
@@ -4,8 +4,6 @@
 #include "example.h"
 %}
 
-%include "std_string.i"
-
 /* turn on director wrapping Callback */
 %feature("director") Callback;
 
diff --git a/Examples/d/callback/example.i b/Examples/d/callback/example.i
index 90beda01a..cf61ef9d2 100644
--- a/Examples/d/callback/example.i
+++ b/Examples/d/callback/example.i
@@ -4,8 +4,6 @@
 #include "example.h"
 %}
 
-%include "std_string.i"
-
 /* turn on director wrapping Callback */
 %feature("director") Callback;
 
diff --git a/Examples/go/callback/example.i b/Examples/go/callback/example.i
index 90beda01a..cf61ef9d2 100644
--- a/Examples/go/callback/example.i
+++ b/Examples/go/callback/example.i
@@ -4,8 +4,6 @@
 #include "example.h"
 %}
 
-%include "std_string.i"
-
 /* turn on director wrapping Callback */
 %feature("director") Callback;
 
diff --git a/Examples/java/callback/example.i b/Examples/java/callback/example.i
index 90beda01a..cf61ef9d2 100644
--- a/Examples/java/callback/example.i
+++ b/Examples/java/callback/example.i
@@ -4,8 +4,6 @@
 #include "example.h"
 %}
 
-%include "std_string.i"
-
 /* turn on director wrapping Callback */
 %feature("director") Callback;
 
diff --git a/Examples/octave/callback/example.i b/Examples/octave/callback/example.i
index 50ef5096d..333127a9d 100644
--- a/Examples/octave/callback/example.i
+++ b/Examples/octave/callback/example.i
@@ -7,8 +7,6 @@
 #include "example.h"
 %}
 
-%include "std_string.i"
-
 /* turn on director wrapping Callback */
 %feature("director") Callback;
 
diff --git a/Examples/perl5/callback/example.i b/Examples/perl5/callback/example.i
index 5f9072e61..821a9e6b5 100644
--- a/Examples/perl5/callback/example.i
+++ b/Examples/perl5/callback/example.i
@@ -4,8 +4,6 @@
 #include "example.h"
 %}
 
-%include "std_string.i"
-
 /* turn on director wrapping Callback */
 %feature("director") Callback;
 
diff --git a/Examples/php/callback/example.i b/Examples/php/callback/example.i
index 90beda01a..cf61ef9d2 100644
--- a/Examples/php/callback/example.i
+++ b/Examples/php/callback/example.i
@@ -4,8 +4,6 @@
 #include "example.h"
 %}
 
-%include "std_string.i"
-
 /* turn on director wrapping Callback */
 %feature("director") Callback;
 
diff --git a/Examples/python/callback/example.i b/Examples/python/callback/example.i
index 90beda01a..cf61ef9d2 100644
--- a/Examples/python/callback/example.i
+++ b/Examples/python/callback/example.i
@@ -4,8 +4,6 @@
 #include "example.h"
 %}
 
-%include "std_string.i"
-
 /* turn on director wrapping Callback */
 %feature("director") Callback;