diff --git a/src/rendering/Scenery.cpp b/src/rendering/Scenery.cpp
index e6eb76a..cc5ba94 100644
--- a/src/rendering/Scenery.cpp
+++ b/src/rendering/Scenery.cpp
@@ -233,7 +233,14 @@ void sceneryGetTerrain(TerrainDefinition* terrain)
 
 TerrainDefinition* sceneryGetTerrainDirect()
 {
-    return _main_scenery->getTerrain();
+    if (_main_scenery)
+    {
+        return _main_scenery->getTerrain();
+    }
+    else
+    {
+        return NULL;
+    }
 }
 
 void scenerySetTextures(TexturesDefinition* textures)
diff --git a/src/rendering/textures/tex_definition.c b/src/rendering/textures/tex_definition.c
index faf4e8f..9006604 100644
--- a/src/rendering/textures/tex_definition.c
+++ b/src/rendering/textures/tex_definition.c
@@ -71,8 +71,11 @@ static void _layerValidateDefinition(TexturesLayerDefinition* definition)
 
     /* Update zone height range */
     TerrainDefinition* terrain = sceneryGetTerrainDirect();
-    HeightInfo height_info = terrainGetHeightInfo(terrain);
-    zoneSetRelativeHeight(definition->terrain_zone, height_info.min_height, height_info.base_height, height_info.max_height);
+    if (terrain)
+    {
+        HeightInfo height_info = terrainGetHeightInfo(terrain);
+        zoneSetRelativeHeight(definition->terrain_zone, height_info.min_height, height_info.base_height, height_info.max_height);
+    }
 }
 
 static TexturesLayerDefinition* _layerCreateDefinition()