diff --git a/game/game.py b/game/game.py
index 4365db7..d44633e 100644
--- a/game/game.py
+++ b/game/game.py
@@ -269,6 +269,7 @@ def main():
     destroy_texture(sea_polar_textures)
     destroy_texture(sea_detail_texture)
     destroy_texture(heightmap)
+    destroy_texture(normalmap)
     destroy_triangles(sky_triangles)
     archive.destroy()
     destroy_shader(terrain_shader)