diff --git a/src_main/introspection/piintrospection_server_p.cpp b/src_main/introspection/piintrospection_server_p.cpp
index 5cb0a0e4..0ca40c38 100644
--- a/src_main/introspection/piintrospection_server_p.cpp
+++ b/src_main/introspection/piintrospection_server_p.cpp
@@ -86,16 +86,6 @@ PIVector<PIIntrospection::ObjectInfo> PIIntrospection::getObjects() {
 }
 
 
-PIByteArray & operator <<(PIByteArray & s, const std::map<uint, PIIntrospectionContainers::_Type> & v) {
-	PIMap<uint, PIIntrospectionContainers::_Type> m;
-	for (typename std::map<uint, PIIntrospectionContainers::_Type>::const_iterator i = v.cbegin(); i != v.cend(); ++i) {
-		m[i->first] = i->second;
-	}
-	s << m;
-	return s;
-}
-
-
 PIByteArray & operator <<(PIByteArray & b, const PIIntrospection::RequiredInfo & v) {
 	PIChunkStream cs;
 	cs.add(1, v.types);
diff --git a/src_main/introspection/piintrospection_server_p.h b/src_main/introspection/piintrospection_server_p.h
index d7808039..7b7ef881 100644
--- a/src_main/introspection/piintrospection_server_p.h
+++ b/src_main/introspection/piintrospection_server_p.h
@@ -91,8 +91,6 @@ public:
 
 };
 
-PIByteArray & operator <<(PIByteArray & s, const std::map<uint, PIIntrospectionContainers::_Type> & v);
-
 PIByteArray & operator <<(PIByteArray & b, const PIIntrospection::RequiredInfo & v);
 PIByteArray & operator >>(PIByteArray & b, PIIntrospection::RequiredInfo & v);