diff --git a/source/interface.cpp b/source/interface.cpp
index 55b47ac..56e9ae8 100644
--- a/source/interface.cpp
+++ b/source/interface.cpp
@@ -3068,14 +3068,14 @@ DLL_GIVEFNPTRSTODLL GiveFnptrsToDll (enginefuncs_t *functionTable, globalvars_t
 
    g_gameLib = new Library (gameDLLName);
 
-   if (!g_gameLib->IsLoaded ()) {
-      logEntry (true, LL_FATAL | LL_IGNORE, "Unable to load gamedll \"%s\". Exiting... (gamedir: %s)", gameDLLName, engine.GetModName ());
+   if (!g_gameLib->isValid ()) {
+      logEntry (true, LL_FATAL | LL_IGNORE, "Unable to load gamedll \"%s\". Exiting... (gamedir: %s)", gameDLLName, engine.getModName ());
       delete g_gameLib;
    }
 #else
    g_gameLib = LoadCSBinary ();
    {
-      if (g_gameLib == nullptr && !(g_gameFlags & GAME_METAMOD)) {
+      if (!g_gameLib && !(g_gameFlags & GAME_METAMOD)) {
          logEntry (true, LL_FATAL | LL_IGNORE, "Mod that you has started, not supported by this bot (gamedir: %s)", engine.getModName ());
          return;
       }
@@ -3352,4 +3352,4 @@ LINK_ENTITY (weapon_usp)
 LINK_ENTITY (weapon_xm1014)
 LINK_ENTITY (weaponbox)
 LINK_ENTITY (world_items)
-LINK_ENTITY (worldspawn)
\ No newline at end of file
+LINK_ENTITY (worldspawn)