diff --git a/ndn-cpp/encoding/BinaryXMLStructureDecoder.hpp b/ndn-cpp/encoding/BinaryXMLStructureDecoder.hpp
index eac9a8d..ad562ff 100644
--- a/ndn-cpp/encoding/BinaryXMLStructureDecoder.hpp
+++ b/ndn-cpp/encoding/BinaryXMLStructureDecoder.hpp
@@ -31,9 +31,9 @@
    */
   bool findElementEnd(unsigned char *input, unsigned int inputLength) 
   {
-    char *error;
+    ndn_Error error;
     if (error = ndn_BinaryXMLStructureDecoder_findElementEnd(&base_, input, inputLength))
-      throw std::runtime_error(error);
+      throw std::runtime_error(ndn_getErrorString(error));
     return gotElementEnd();
   }
   
diff --git a/ndn-cpp/encoding/BinaryXMLWireFormat.cpp b/ndn-cpp/encoding/BinaryXMLWireFormat.cpp
index 714dd1d..3454545 100644
--- a/ndn-cpp/encoding/BinaryXMLWireFormat.cpp
+++ b/ndn-cpp/encoding/BinaryXMLWireFormat.cpp
@@ -39,9 +39,9 @@
   struct ndn_BinaryXMLDecoder decoder;
   ndn_BinaryXMLDecoder_init(&decoder, (unsigned char *)input, inputLength);
   
-  char *error;
+  ndn_Error error;
   if (error = ndn_decodeBinaryXMLName(&nameStruct, &decoder))
-    throw std::runtime_error(error);
+    throw std::runtime_error(ndn_getErrorString(error));
 
   name.set(nameStruct);
 }
@@ -55,9 +55,9 @@
   struct ndn_BinaryXMLDecoder decoder;
   ndn_BinaryXMLDecoder_init(&decoder, (unsigned char *)input, inputLength);
   
-  char *error;
+  ndn_Error error;
   if (error = ndn_decodeBinaryXMLInterest(&interestStruct, &decoder))
-    throw std::runtime_error(error);
+    throw std::runtime_error(ndn_getErrorString(error));
 
   interest.set(interestStruct);
 }