diff --git a/types/leaflet-polylinedecorator/index.d.ts b/types/leaflet-polylinedecorator/index.d.ts
index b66fbc58cc..2ad9e3e9fa 100644
--- a/types/leaflet-polylinedecorator/index.d.ts
+++ b/types/leaflet-polylinedecorator/index.d.ts
@@ -1,7 +1,8 @@
-// Type definitions for leaflet-polylinedecorator 1.1
+// Type definitions for leaflet-polylinedecorator 1.6
 // Project: https://github.com/bbecquet/Leaflet.PolylineDecorator#readme
 // Definitions by: Viktor Soucek <https://github.com/soucekv>
 //                 Michael Faisst <https://github.com/michaelfaisst>
+//                 BePo65 <https://github.com/BePo65>
 // Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
 // TypeScript Version: 2.3
 
@@ -16,6 +17,8 @@ declare module 'leaflet' {
 
         class Dash {
             constructor(options?: DashOptions);
+            initialize(options?: DashOptions): void;
+            buildSymbol(dirPoint: Point, latLngs: LatLng[], map: Map, index: number, total: number): Polyline;
         }
 
         function dash(options?: DashOptions): Dash;
@@ -29,6 +32,8 @@ declare module 'leaflet' {
 
         class ArrowHead {
             constructor(options?: ArrowHeadOptions);
+            initialize(options?: ArrowHeadOptions): void;
+            buildSymbol(dirPoint: Point, latLngs: LatLng[], map: Map, index: number, total: number): Polygon | Polyline;
         }
 
         function arrowHead(options?: ArrowHeadOptions): ArrowHead;
@@ -40,11 +45,16 @@ declare module 'leaflet' {
 
         class Marker {
             constructor(options?: MarkerOptions);
+            initialize(options?: MarkerOptions): void;
+            buildSymbol(dirPoint: Point, latLngs: LatLng[], map: Map, index: number, total: number): Marker;
         }
 
         function marker(options?: MarkerOptions): Marker;
     }
 
+    function isCoord(c: any): boolean;
+    function isCoordArray(c: any): boolean;
+
     interface Pattern {
         offset?: number | string;
         endOffset?: number | string;
@@ -58,6 +68,13 @@ declare module 'leaflet' {
 
     class PolylineDecorator extends FeatureGroup {
         constructor(paths: Polyline | Polygon | LatLngExpression[] | Polyline[] | Polygon[] | LatLngExpression[][], options?: PolylineDecoratorOptions);
+        initialize(paths: Polyline | Polygon | LatLngExpression[] | Polyline[] | Polygon[] | LatLngExpression[][], options?: PolylineDecoratorOptions): void;
+        setPatterns(patterns: Pattern[]): void;
+        setPaths(paths: Polyline | Polygon | LatLngExpression[] | Polyline[] | Polygon[] | LatLngExpression[][]): void;
+        onAdd(map: Map): this;
+        onRemove(map: Map): this;
+        getBounds(): LatLngBounds;
+        redraw(): void;
     }
 
     function polylineDecorator(paths: Polyline | Polyline[], options?: PolylineDecoratorOptions): PolylineDecorator;