diff --git a/lib/cpp/src/thrift/transport/TTransportException.cpp b/lib/cpp/src/thrift/transport/TTransportException.cpp
index 2c1f303..2b1430c 100644
--- a/lib/cpp/src/thrift/transport/TTransportException.cpp
+++ b/lib/cpp/src/thrift/transport/TTransportException.cpp
@@ -28,4 +28,23 @@
 
 namespace apache { namespace thrift { namespace transport {
 
+  const char* TTransportException::what() const throw() {
+    if (message_.empty()) {
+      switch (type_) {
+        case UNKNOWN        : return "TTransportException: Unknown transport exception";
+        case NOT_OPEN       : return "TTransportException: Transport not open";
+        case TIMED_OUT      : return "TTransportException: Timed out";
+        case END_OF_FILE    : return "TTransportException: End of file";
+        case INTERRUPTED    : return "TTransportException: Interrupted";
+        case BAD_ARGS       : return "TTransportException: Invalid arguments";
+        case CORRUPTED_DATA : return "TTransportException: Corrupted Data";
+        case INTERNAL_ERROR : return "TTransportException: Internal error";
+        default             : return "TTransportException: (Invalid exception type)";
+      }
+    } else {
+      return message_.c_str();
+    }
+  }
+
+
 }}} // apache::thrift::transport
diff --git a/lib/cpp/src/thrift/transport/TTransportException.h b/lib/cpp/src/thrift/transport/TTransportException.h
index 028dbb8..8558837 100644
--- a/lib/cpp/src/thrift/transport/TTransportException.h
+++ b/lib/cpp/src/thrift/transport/TTransportException.h
@@ -83,23 +83,7 @@
     return type_;
   }
 
-  virtual const char* what() const throw() {
-    if (message_.empty()) {
-      switch (type_) {
-        case UNKNOWN        : return "TTransportException: Unknown transport exception";
-        case NOT_OPEN       : return "TTransportException: Transport not open";
-        case TIMED_OUT      : return "TTransportException: Timed out";
-        case END_OF_FILE    : return "TTransportException: End of file";
-        case INTERRUPTED    : return "TTransportException: Interrupted";
-        case BAD_ARGS       : return "TTransportException: Invalid arguments";
-        case CORRUPTED_DATA : return "TTransportException: Corrupted Data";
-        case INTERNAL_ERROR : return "TTransportException: Internal error";
-        default             : return "TTransportException: (Invalid exception type)";
-      }
-    } else {
-      return message_.c_str();
-    }
-  }
+  virtual const char* what() const throw();
 
  protected:
   /** Just like strerror_r but returns a C++ string object. */