1 files changed, 1 insertions, 1 deletions

diff --git a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/translator/multiobject/MultiObjectStorageRefiner.java b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/translator/multiobject/MultiObjectStorageRefiner.java
index 147ae486..ab401f9e 100644
--- a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/translator/multiobject/MultiObjectStorageRefiner.java
+++ b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/translator/multiobject/MultiObjectStorageRefiner.java
@@ -28,7 +28,7 @@ class MultiObjectStorageRefiner implements StorageRefiner {
                         return false;
                 }
                 var newParentCount = parentCount.take(1);
-                if (newParentCount.isEmpty()) {
+                if (newParentCount.isError()) {
                         return false;
                 }
                 var childKey = Tuple.of(childNode);