diff --git a/backends/libpurple/utils.h b/backends/libpurple/utils.h
index 72d513a499db29797d2aa7d9921017b1f94f6ce7..8324f46ac279b603a7c073b65d1bf32f1494dc4e 100644
--- a/backends/libpurple/utils.h
+++ b/backends/libpurple/utils.h
@@ -27,7 +27,11 @@
 void spectrum_sigchld_handler(int sig);
 #endif
 
-int create_socket(char *host, int portno);
+int create_socket(const char *host, int portno);
 GHashTable *spectrum_ui_get_info(void);
 
 void execute_purple_plugin_action(PurpleConnection *gc, const std::string &name);
+
+#ifdef _WIN32
+	std::wstring utf8ToUtf16(const std::string& str);
+#endif