diff --git a/swing/resources/datafiles/sky/lake.jpg b/swing/resources/datafiles/sky/lake.jpg
new file mode 100644
index 000000000..6b0f623a8
Binary files /dev/null and b/swing/resources/datafiles/sky/lake.jpg differ
diff --git a/swing/resources/datafiles/sky/lake.png b/swing/resources/datafiles/sky/lake.png
deleted file mode 100644
index 14c607301..000000000
Binary files a/swing/resources/datafiles/sky/lake.png and /dev/null differ
diff --git a/swing/src/net/sf/openrocket/gui/figure3d/photo/sky/builtin/Lake.java b/swing/src/net/sf/openrocket/gui/figure3d/photo/sky/builtin/Lake.java
index e43f9f6b6..3df87679e 100644
--- a/swing/src/net/sf/openrocket/gui/figure3d/photo/sky/builtin/Lake.java
+++ b/swing/src/net/sf/openrocket/gui/figure3d/photo/sky/builtin/Lake.java
@@ -11,7 +11,7 @@ public class Lake extends SkySphere implements Credit {
 	public static final Lake instance = new Lake();
 	
 	private Lake() {
-		super(Lake.class.getResource("/datafiles/sky/lake.png"));
+		super(Lake.class.getResource("/datafiles/sky/lake.jpg"));
 	}
 	
 	@Override