diff --git a/patchwork.md b/patchwork.md
index 465fe5822..592354325 100644
--- a/patchwork.md
+++ b/patchwork.md
@@ -82,3 +82,11 @@ Use tags to check if something is a dye
 We half did this already, just needed to change a couple of checks.
 Closes #541.
 ```
+
+```
+6cee4efcd3610536ee74330cd728f7371011e5a8
+Fix incorrect open container check
+
+Was this always broken, or did it happen in a Minecraft update? Don't
+know, but it's a very silly mistake either way. Fixes #544
+```
diff --git a/src/main/java/dan200/computercraft/shared/turtle/core/TurtlePlayer.java b/src/main/java/dan200/computercraft/shared/turtle/core/TurtlePlayer.java
index 23e86ad76..41911b119 100644
--- a/src/main/java/dan200/computercraft/shared/turtle/core/TurtlePlayer.java
+++ b/src/main/java/dan200/computercraft/shared/turtle/core/TurtlePlayer.java
@@ -54,10 +54,9 @@ public final class TurtlePlayer extends FakePlayer {
     }
 
     private void setState(ITurtleAccess turtle) {
-        if (this.currentScreenHandler != null) {
+        if (this.currentScreenHandler != playerScreenHandler) {
             ComputerCraft.log.warn("Turtle has open container ({})", this.currentScreenHandler);
-            this.currentScreenHandler.close(this);
-            this.currentScreenHandler = null;
+            closeCurrentScreen();
         }
 
         BlockPos position = turtle.getPosition();