diff --git a/src/data/projEntry.tsx b/src/data/projEntry.tsx
index f44f976..1bcab95 100644
--- a/src/data/projEntry.tsx
+++ b/src/data/projEntry.tsx
@@ -414,7 +414,12 @@ export const main = createLayer("main", function (this: BaseLayer) {
                     return otherNode.type === "resource";
                 },
                 onDrop(node, otherNode) {
-                    node.state = (otherNode.state as unknown as ResourceState).type;
+                    const droppedType = (otherNode.state as unknown as ResourceState).type;
+                    if (node.state === droppedType) {
+                        node.state = undefined;
+                    } else {
+                        node.state = droppedType;
+                    }
                     board.selectedNode.value = node;
                 },
                 draggable: true