diff --git a/src/pixi/extras/PIXISpine.js b/src/pixi/extras/PIXISpine.js
index f53c716..50c6358 100644
--- a/src/pixi/extras/PIXISpine.js
+++ b/src/pixi/extras/PIXISpine.js
@@ -225,7 +225,7 @@
                 slot.currentMeshName = meshName;
             }
 
-            attachment.computeWorldVertices(slot.bone.skeleton.x, slot.bone.skeleton.y, slot, slot.currentMesh.verticies);
+            attachment.computeWorldVertices(slot.bone.skeleton.x, slot.bone.skeleton.y, slot, slot.currentMesh.vertices);
 
         }
         else
@@ -292,7 +292,7 @@
     strip.drawMode = PIXI.Strip.DrawModes.TRIANGLES;
     strip.padding = 5;
 
-    strip.verticies = new PIXI.Float32Array(attachment.uvs.length);
+    strip.vertices = new PIXI.Float32Array(attachment.uvs.length);
     strip.uvs = attachment.uvs;
     strip.indices = attachment.triangles;
 

diff --git a/src/pixi/extras/PIXISpine.js b/src/pixi/extras/PIXISpine.js
index f53c716..50c6358 100644
--- a/src/pixi/extras/PIXISpine.js
+++ b/src/pixi/extras/PIXISpine.js
@@ -225,7 +225,7 @@
                 slot.currentMeshName = meshName;
             }
 
-            attachment.computeWorldVertices(slot.bone.skeleton.x, slot.bone.skeleton.y, slot, slot.currentMesh.verticies);
+            attachment.computeWorldVertices(slot.bone.skeleton.x, slot.bone.skeleton.y, slot, slot.currentMesh.vertices);
 
         }
         else
@@ -292,7 +292,7 @@
     strip.drawMode = PIXI.Strip.DrawModes.TRIANGLES;
     strip.padding = 5;
 
-    strip.verticies = new PIXI.Float32Array(attachment.uvs.length);
+    strip.vertices = new PIXI.Float32Array(attachment.uvs.length);
     strip.uvs = attachment.uvs;
     strip.indices = attachment.triangles;
 
diff --git a/src/pixi/extras/Rope.js b/src/pixi/extras/Rope.js
index 29b6460..161e1ed 100644
--- a/src/pixi/extras/Rope.js
+++ b/src/pixi/extras/Rope.js
@@ -17,7 +17,7 @@
     PIXI.Strip.call( this, texture );
     this.points = points;
 
-    this.verticies = new PIXI.Float32Array(points.length * 4);
+    this.vertices = new PIXI.Float32Array(points.length * 4);
     this.uvs = new PIXI.Float32Array(points.length * 4);
     this.colors = new PIXI.Float32Array(points.length * 2);
     this.indices = new PIXI.Uint16Array(points.length * 2);
@@ -117,7 +117,7 @@
 
     this.count-=0.2;
 
-    var verticies = this.verticies;
+    var vertices = this.vertices;
     var total = points.length,
         point, index, ratio, perpLength, num;
 
@@ -150,10 +150,10 @@
         perp.x *= num;
         perp.y *= num;
 
-        verticies[index] = point.x + perp.x;
-        verticies[index+1] = point.y + perp.y;
-        verticies[index+2] = point.x - perp.x;
-        verticies[index+3] = point.y - perp.y;
+        vertices[index] = point.x + perp.x;
+        vertices[index+1] = point.y + perp.y;
+        vertices[index+2] = point.x - perp.x;
+        vertices[index+3] = point.y - perp.y;
 
         lastPoint = point;
     }