diff --git a/src/main/java/org/ntlab/acanthus_server/entities/Stroke.java b/src/main/java/org/ntlab/acanthus_server/entities/Stroke.java
index 7d3922b..af314c4 100644
--- a/src/main/java/org/ntlab/acanthus_server/entities/Stroke.java
+++ b/src/main/java/org/ntlab/acanthus_server/entities/Stroke.java
@@ -6,7 +6,7 @@
 import org.ntlab.acanthus_server.entities.Position;
 
 public class Stroke {
-    static int strokeNoCount; //strokeNoを数えるためだけ
+    private static int strokeNoCount; //strokeNoを数えるためだけ
     private int strokeNo;
     private int pen;
     private int color;
@@ -41,7 +41,7 @@
         this.thickness = thickness;
     }
 
-    public void addPositions(ArrayList<Position> positions) {
+    public void addPosition(ArrayList<Position> positions) {
         this.positions = positions;
     }