diff --git a/src/framework/platform/platform.h b/src/framework/platform/platform.h
index a4a0f849..e5cde12f 100644
--- a/src/framework/platform/platform.h
+++ b/src/framework/platform/platform.h
@@ -81,7 +81,7 @@ public:
 
     /// Get the app user directory, the place to save files configurations files
     std::string getAppUserDir();
-    std::string generateBacktrace(int maxLevel);
+    std::string generateBacktrace(int maxLevel = 100);
 
 private:
     PlatformListener* m_listener;
diff --git a/src/framework/platform/x11platform.cpp b/src/framework/platform/x11platform.cpp
index 6d552245..895146ed 100644
--- a/src/framework/platform/x11platform.cpp
+++ b/src/framework/platform/x11platform.cpp
@@ -868,8 +868,7 @@ std::string Platform::getAppUserDir()
     return sdir.str();
 }
 
-
-std::string Platform::generateBacktrace(int maxLevel = 100)
+std::string Platform::generateBacktrace(int maxLevel)
 {
     std::stringstream ss;
     std::vector<void*> buffer(maxLevel);
diff --git a/src/otclient/net/protocolgameparse.cpp b/src/otclient/net/protocolgameparse.cpp
index 56f7bd08..1e67188b 100644
--- a/src/otclient/net/protocolgameparse.cpp
+++ b/src/otclient/net/protocolgameparse.cpp
@@ -801,7 +801,7 @@ void ProtocolGame::parseOutfitWindow(InputMessage& msg)
 
 void ProtocolGame::parseVipState(InputMessage& msg)
 {
-    uint32 id = msg.getU32();
+    int id = msg.getU32();
     std::string name = msg.getString();
     bool online = msg.getU8() != 0;
 
@@ -812,7 +812,7 @@ void ProtocolGame::parseVipState(InputMessage& msg)
 
 void ProtocolGame::parseVipLogin(InputMessage& msg)
 {
-    uint32 id = msg.getU32();
+    int id = msg.getU32();
 
     g_dispatcher.addEvent([=] {
         g_lua.callGlobalField("Game", "onVipStateChange", id, true);
@@ -821,7 +821,7 @@ void ProtocolGame::parseVipLogin(InputMessage& msg)
 
 void ProtocolGame::parseVipLogout(InputMessage& msg)
 {
-    uint32 id = msg.getU32();
+    int id = msg.getU32();
 
     g_dispatcher.addEvent([=] {
         g_lua.callGlobalField("Game", "onVipStateChange", id, false);