diff --git a/src/dusk/config.cpp b/src/dusk/config.cpp
index 159706fac8..98f32cf8cd 100644
--- a/src/dusk/config.cpp
+++ b/src/dusk/config.cpp
@@ -20,7 +20,7 @@ using json = nlohmann::json;
 aurora::Module DuskConfigLog("dusk::config");
 
 static absl::flat_hash_map<std::string_view, ConfigVarBase*> RegisteredConfigVars;
-static bool RegistrationDone;
+static bool RegistrationDone = false;
 
 static std::string GetConfigJsonPath() {
     return fmt::format("{}{}", configPath, ConfigFileName);
@@ -219,4 +219,4 @@ ConfigVarBase* dusk::config::GetConfigVar(std::string_view name) {
     }
 
     return nullptr;
-}
\ No newline at end of file
+}
diff --git a/src/m_Do/m_Do_main.cpp b/src/m_Do/m_Do_main.cpp
index e82f6cd8ba..b5f5e36669 100644
--- a/src/m_Do/m_Do_main.cpp
+++ b/src/m_Do/m_Do_main.cpp
@@ -366,10 +366,19 @@ static constexpr PADDefaultMapping defaultPadMapping = {
     },
 };
 
+static bool mainCalled = false;
+
 // =========================================================================
 // PC ENTRY POINT
 // =========================================================================
 int game_main(int argc, char* argv[]) {
+    // On iOS, when connected to an external monitor, SDLUIKitSceneDelegate scene:willConnectToSession:
+    // can call our main function again. Explicitly guard against this reinitialization.
+    if (mainCalled) {
+        return 0;
+    }
+    mainCalled = true;
+
     dusk::registerSettings();
     dusk::config::FinishRegistration();