diff --git a/io7m-jsycamore-core/src/main/java/com/io7m/jsycamore/core/renderer/SyEmbossed.java b/io7m-jsycamore-core/src/main/java/com/io7m/jsycamore/core/renderer/SyEmbossed.java
index 52dcfb3e..98c328ce 100644
--- a/io7m-jsycamore-core/src/main/java/com/io7m/jsycamore/core/renderer/SyEmbossed.java
+++ b/io7m-jsycamore-core/src/main/java/com/io7m/jsycamore/core/renderer/SyEmbossed.java
@@ -405,8 +405,8 @@ private void drawEmbossedCornerNW(
       this.poly.reset();
       this.poly.addPoint(0, 0);
       this.poly.addPoint(emboss_size, emboss_size);
-      this.poly.addPoint(thickness_of_horizontal + emboss_size, emboss_size);
-      this.poly.addPoint(thickness_of_horizontal + emboss_size, 0);
+      this.poly.addPoint(thickness_of_vertical + emboss_size, emboss_size);
+      this.poly.addPoint(thickness_of_vertical + emboss_size, 0);
       graphics.fill(this.poly);
 
       graphics.setPaint(bottom);
@@ -1010,14 +1010,14 @@ private void drawEmbossedL_NW(
 
       graphics.translate(0, thickness_of_horizontal);
       graphics.setPaint(left);
-      graphics.fillRect(0, 0, emboss_size, length - thickness_of_vertical);
+      graphics.fillRect(0, 0, emboss_size, length - thickness_of_horizontal);
       graphics.setTransform(old_transform);
 
       graphics.translate(
         thickness_of_vertical - emboss_size,
         thickness_of_horizontal);
       graphics.setPaint(right);
-      graphics.fillRect(0, 0, emboss_size, length - thickness_of_vertical);
+      graphics.fillRect(0, 0, emboss_size, length - thickness_of_horizontal);
       graphics.setTransform(old_transform);
 
       /**