diff --git a/source/tools/atlas/AtlasUI/ScenarioEditor/Sections/Map/Map.cpp b/source/tools/atlas/AtlasUI/ScenarioEditor/Sections/Map/Map.cpp
index d99a8d96d1..efd2c426ed 100644
--- a/source/tools/atlas/AtlasUI/ScenarioEditor/Sections/Map/Map.cpp
+++ b/source/tools/atlas/AtlasUI/ScenarioEditor/Sections/Map/Map.cpp
@@ -271,6 +271,9 @@ AtObj MapSettingsControl::UpdateSettingsObject()
 	// teams locked
 	m_MapSettings.setBool("LockTeams", wxDynamicCast(FindWindow(ID_MapTeams), wxCheckBox)->GetValue());
 
+	// default AI RNG seed
+	m_MapSettings.setInt("AISeed", 0);
+
 	return m_MapSettings;
 }