diff --git a/Examples/javascript/exception/example.h b/Examples/javascript/exception/example.h
index bc744cda7..c76c46a5d 100644
--- a/Examples/javascript/exception/example.h
+++ b/Examples/javascript/exception/example.h
@@ -10,7 +10,7 @@ class Exc {
 public:
   Exc(int c, const char *m) {
     code = c;
-    strncpy(msg,m,256);
+    strncpy(msg,m,255);
   }
   int code;
   char msg[256];
diff --git a/Examples/lua/exception/example.h b/Examples/lua/exception/example.h
index bc744cda7..c76c46a5d 100644
--- a/Examples/lua/exception/example.h
+++ b/Examples/lua/exception/example.h
@@ -10,7 +10,7 @@ class Exc {
 public:
   Exc(int c, const char *m) {
     code = c;
-    strncpy(msg,m,256);
+    strncpy(msg,m,255);
   }
   int code;
   char msg[256];
diff --git a/Examples/python/exception/example.h b/Examples/python/exception/example.h
index bc744cda7..c76c46a5d 100644
--- a/Examples/python/exception/example.h
+++ b/Examples/python/exception/example.h
@@ -10,7 +10,7 @@ class Exc {
 public:
   Exc(int c, const char *m) {
     code = c;
-    strncpy(msg,m,256);
+    strncpy(msg,m,255);
   }
   int code;
   char msg[256];