diff --git a/CMakeLists.txt b/CMakeLists.txt
index 850ef63..56fed20 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,6 +1,6 @@
 cmake_minimum_required (VERSION 3.6)
 project (mastodon-cpp
-         VERSION 0.30.1
+         VERSION 0.30.2
          LANGUAGES CXX
 )
 
diff --git a/src/easy/easy.hpp b/src/easy/easy.hpp
index 402cee0..e4b45e4 100644
--- a/src/easy/easy.hpp
+++ b/src/easy/easy.hpp
@@ -309,7 +309,7 @@ public:
      */
     const vector<Notification> get_notifications(
         uint_fast16_t &error, const uint_fast16_t limit = 20,
-        const string since_id = 0, const string max_id = 0);
+        const string since_id = "", const string max_id = "");
 
     /*!
      *  @brief  Base class for all entities.