diff --git a/Source/Libs/GdkSharp/EventScroll.cs b/Source/Libs/GdkSharp/EventScroll.cs
index 028a76771..0fd5860d7 100644
--- a/Source/Libs/GdkSharp/EventScroll.cs
+++ b/Source/Libs/GdkSharp/EventScroll.cs
@@ -41,6 +41,8 @@ namespace Gdk {
 			public IntPtr device;
 			public double x_root;
 			public double y_root;
+			public double delta_x;
+			public double delta_y;
 		}
 
 		NativeStruct Native {
@@ -101,6 +103,15 @@ namespace Gdk {
 			}
 		}
 
+		public double DeltaX {
+			get { return Native.delta_x; }
+			set {
+				NativeStruct native = Native;
+				native.delta_x = value;
+				Marshal.StructureToPtr (native, Handle, false);
+			}
+		}
+
 		public double Y {
 			get { return Native.y; }
 			set {
@@ -118,6 +129,15 @@ namespace Gdk {
 				Marshal.StructureToPtr (native, Handle, false);
 			}
 		}
+
+		public double DeltaY {
+			get { return Native.delta_y; }
+			set {
+				NativeStruct native = Native;
+				native.delta_y = value;
+				Marshal.StructureToPtr (native, Handle, false);
+			}
+		}
 	}
 }