diff --git a/src/main/java/binnie/genetics/gui/WindowAnalyst.java b/src/main/java/binnie/genetics/gui/WindowAnalyst.java
index a50aa2dd..be12c574 100644
--- a/src/main/java/binnie/genetics/gui/WindowAnalyst.java
+++ b/src/main/java/binnie/genetics/gui/WindowAnalyst.java
@@ -116,6 +116,8 @@ public void initialiseServer() {
                 tracker.synchToPlayer(getPlayer());
             }
         }
+        getWindowInventory().createSlot(0);
+        getWindowInventory().createSlot(1);
         setupValidators();
     }