diff --git a/wrap/Class.cpp b/wrap/Class.cpp
index da1510d29..0485de5bd 100644
--- a/wrap/Class.cpp
+++ b/wrap/Class.cpp
@@ -58,7 +58,6 @@ void Class::matlab_proxy(const string& classFile, const string& wrapperName, Fil
   proxyFile.oss << "    function obj = " << matlabName << "(varargin)" << endl;
   // Special pointer constructor
 	{
-		const int id = functionNames.size();
 		proxyFile.oss << "      if nargin == 2 && isa(varargin{1}, 'uint64') && ";
 		proxyFile.oss << "varargin{1} == uint64(" << ptr_constructor_key << ")\n";
 		proxyFile.oss << "        obj.self = varargin{2};\n";
diff --git a/wrap/matlab.h b/wrap/matlab.h
index dc13eafad..31778cdbd 100644
--- a/wrap/matlab.h
+++ b/wrap/matlab.h
@@ -121,6 +121,7 @@ void checkArguments(const string& name, int nargout, int nargin, int expected) {
 template <typename Class>
 mxArray* wrap(Class& value) {
   error("wrap internal error: attempted wrap of invalid type");
+	return 0;
 }
 
 // specialization to string