diff --git a/maker.js/makerjs-tests.ts b/maker.js/makerjs-tests.ts
index be5b53229..59a50e4fc 100644
--- a/maker.js/makerjs-tests.ts
+++ b/maker.js/makerjs-tests.ts
@@ -116,6 +116,15 @@ function test() {
 		new makerjs.paths.Chord(paths.arc);
 		new makerjs.paths.Parallel(paths.line, 4, [1,1]);
 		
+		//paths.line.layer = "0";
+		
+		var x: MakerJs.IPathLine = { 
+			type: "line", 
+			origin: [9,9], 
+			end: [8,8], 
+			layer: "4"
+		};
+		
 		return paths;
 	}
 	
diff --git a/maker.js/makerjs.d.ts b/maker.js/makerjs.d.ts
index bcba375f8..69cd3dbb7 100644
--- a/maker.js/makerjs.d.ts
+++ b/maker.js/makerjs.d.ts
@@ -96,11 +96,15 @@ declare module MakerJs {
         /**
          * The type of the path, e.g. "line", "circle", or "arc". These strings are enumerated in pathType.
          */
-        type: string;
+        "type": string;
         /**
          * The main point of reference for this path.
          */
         origin: IPoint;
+        /**
+         * Optional layer of this path.
+         */
+        layer?: string;
     }
     /**
      * Test to see if an object implements the required properties of a path.
@@ -193,7 +197,7 @@ declare module MakerJs {
         /**
          * Key is the type of a path, value is a function which accepts a path object a point object as its parameters.
          */
-        [type: string]: (id: string, pathValue: IPath, origin: IPoint) => void;
+        [type: string]: (id: string, pathValue: IPath, origin: IPoint, layer: string) => void;
     }
     /**
      * String-based enumeration of all paths types.
@@ -276,7 +280,7 @@ declare module MakerJs {
         /**
          * A model may want to specify its type, but this value is not employed yet.
          */
-        type?: string;
+        "type"?: string;
         /**
          * Optional array of path objects in this model.
          */
@@ -293,6 +297,10 @@ declare module MakerJs {
          * An author may wish to add notes to this model instance.
          */
         notes?: string;
+        /**
+         * Optional layer of this model.
+         */
+        layer?: string;
     }
     /**
      * Test to see if an object implements the required properties of a model.
@@ -844,7 +852,7 @@ declare module MakerJs.exporter {
          * @param pathToExport The path to export.
          * @param offset The offset position of the path.
          */
-        exportPath(id: string, pathToExport: IPath, offset: IPoint): void;
+        exportPath(id: string, pathToExport: IPath, offset: IPoint, layer: string): void;
         /**
          * Export a model.
          *