diff --git a/ccm-core/src/main/java/org/libreccm/imexport/AbstractEntityImExporter.java b/ccm-core/src/main/java/org/libreccm/imexport/AbstractEntityImExporter.java
index 8624ff992..e46335b1e 100644
--- a/ccm-core/src/main/java/org/libreccm/imexport/AbstractEntityImExporter.java
+++ b/ccm-core/src/main/java/org/libreccm/imexport/AbstractEntityImExporter.java
@@ -19,6 +19,7 @@
 package org.libreccm.imexport;
 
 import com.fasterxml.jackson.core.JsonProcessingException;
+import com.fasterxml.jackson.databind.DeserializationFeature;
 import com.fasterxml.jackson.databind.ObjectMapper;
 import com.fasterxml.jackson.datatype.jsr310.JavaTimeModule;
 
@@ -64,7 +65,8 @@ public abstract class AbstractEntityImExporter<T extends Exportable> {
 
     public AbstractEntityImExporter() {
         objectMapper = new ObjectMapper()
-            .registerModule(new JavaTimeModule());
+            .registerModule(new JavaTimeModule())
+            .disable(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES);
         requiredEntities = new HashSet<>();
     }