diff --git a/OpenRA.FileFormats/Graphics/ShpReader.cs b/OpenRA.FileFormats/Graphics/ShpReader.cs
index 170adad900..7b610140b2 100644
--- a/OpenRA.FileFormats/Graphics/ShpReader.cs
+++ b/OpenRA.FileFormats/Graphics/ShpReader.cs
@@ -51,7 +51,7 @@ namespace OpenRA.FileFormats
 
 	public enum Format { Format20 = 0x20, Format40 = 0x40, Format80 = 0x80 }
 
-	public class ShpReader : IEnumerable<ImageHeader>
+	public class ShpReader
 	{
 		public readonly int ImageCount;
 		public readonly ushort Width;
@@ -157,15 +157,7 @@ namespace OpenRA.FileFormats
 			return imageData;
 		}
 
-		public IEnumerator<ImageHeader> GetEnumerator()
-		{
-			return headers.GetEnumerator();
-		}
-
-		IEnumerator IEnumerable.GetEnumerator()
-		{
-			return GetEnumerator();
-		}
+		public IEnumerable<ImageHeader> Frames { get { return headers; } }
 
 		public static ShpReader Load(string filename)
 		{
diff --git a/OpenRA.Game/Graphics/SpriteLoader.cs b/OpenRA.Game/Graphics/SpriteLoader.cs
index ecc69faab3..9fed2ad342 100644
--- a/OpenRA.Game/Graphics/SpriteLoader.cs
+++ b/OpenRA.Game/Graphics/SpriteLoader.cs
@@ -29,7 +29,7 @@ namespace OpenRA.Graphics
 		Sprite[] LoadSprites(string filename)
 		{
 			var shp = new ShpReader(FileSystem.OpenWithExts(filename, exts));
-			return shp.Select(a => SheetBuilder.Add(a.Image, shp.Size)).ToArray();
+			return shp.Frames.Select(a => SheetBuilder.Add(a.Image, shp.Size)).ToArray();
 		}
 
 		public Sprite[] LoadAllSprites(string filename) { return sprites[filename]; }
diff --git a/OpenRA.Utility/Command.cs b/OpenRA.Utility/Command.cs
index dfa3e8f71c..0c7475cb11 100644
--- a/OpenRA.Utility/Command.cs
+++ b/OpenRA.Utility/Command.cs
@@ -86,7 +86,7 @@ namespace OpenRA.Utility
 				var x = 0;
 				bitmap.Palette = palette.AsSystemPalette();
 
-				foreach (var frame in srcImage)
+				foreach (var frame in srcImage.Frames)
 				{
 					var data = bitmap.LockBits(new Rectangle(x, 0, srcImage.Width, srcImage.Height), ImageLockMode.WriteOnly,
 						PixelFormat.Format8bppIndexed);
@@ -214,7 +214,7 @@ namespace OpenRA.Utility
 
 			using( var destStream = File.Create(args[4]) )
 				ShpWriter.Write(destStream, srcImage.Width, srcImage.Height,
-					srcImage.Select( im => im.Image.Select(px => (byte)remap[px]).ToArray() ));
+					srcImage.Frames.Select( im => im.Image.Select(px => (byte)remap[px]).ToArray() ));
 		}
 	}
 }