diff --git a/README.md b/README.md
index 7de0f1f..80eebac 100644
--- a/README.md
+++ b/README.md
@@ -28,8 +28,8 @@ Convert specific layer:
 
 `drawing.csv`
 
-| layer | type       |   id |       x |       y |  z |
-| ----- | :--------- | ---: | ------: | ------: | -: |
-| MAP   | LWPOLYLINE | 9896 | 202.568 | -41.517 |  0 |
-| MAP   | LWPOLYLINE | 9896 | 206.053 | -40.062 |  0 |
-| MAP   | LWPOLYLINE | 9896 | 207.450 | -36.796 |  0 |
+| layer | type       |   id |       x |       y |    z |
+| ----- | :--------- | ---: | ------: | ------: | ---: |
+| MAP   | LWPOLYLINE | 9896 | 202.568 | -41.517 |    0 |
+| MAP   | LWPOLYLINE | 9896 | 206.053 | -40.062 |    0 |
+| MAP   | LWPOLYLINE | 9896 | 207.450 | -36.796 |    0 |