diff --git a/desktop/sources/scripts/generator.js b/desktop/sources/scripts/generator.js
index 898e45e..5964786 100644
--- a/desktop/sources/scripts/generator.js
+++ b/desktop/sources/scripts/generator.js
@@ -60,7 +60,7 @@ function Generator(layer,style)
       }
       else if(type == "bezier"){ 
         html += next && after_next ?`Q${next.x},${next.y} ${after_next.x},${after_next.y} ` : ''; 
-        skip = 2
+        skip = 1
       }
       else{ 
         console.warn(`unknown type:${type}`)
diff --git a/desktop/sources/scripts/tool.js b/desktop/sources/scripts/tool.js
index fbbb95c..0c168b9 100644
--- a/desktop/sources/scripts/tool.js
+++ b/desktop/sources/scripts/tool.js
@@ -184,7 +184,7 @@ function Tool()
       }
     }
     if(type == "bezier"){
-      if(this.vertices.length % 2 == 0){
+      if(this.vertices.length != 3 && this.vertices.length != 5 && this.vertices.length != 7 && this.vertices.length != 9){
         return false;
       }
     }