diff --git a/provisioning/provisioning-impl/src/main/java/com/evolveum/midpoint/provisioning/impl/ResourceCache.java b/provisioning/provisioning-impl/src/main/java/com/evolveum/midpoint/provisioning/impl/ResourceCache.java
index 239164f6e07..bd0f71e7e9e 100644
--- a/provisioning/provisioning-impl/src/main/java/com/evolveum/midpoint/provisioning/impl/ResourceCache.java
+++ b/provisioning/provisioning-impl/src/main/java/com/evolveum/midpoint/provisioning/impl/ResourceCache.java
@@ -18,6 +18,8 @@
 import java.util.HashMap;
 import java.util.Map;
 
+import com.evolveum.midpoint.util.logging.Trace;
+import com.evolveum.midpoint.util.logging.TraceManager;
 import org.springframework.stereotype.Component;
 
 import com.evolveum.midpoint.prism.PrismObject;
@@ -34,6 +36,8 @@
 @Component
 public class ResourceCache {
 
+	private static final Trace LOGGER = TraceManager.getTrace(ResourceCache.class);
+
 	private Map<String,PrismObject<ResourceType>> cache;
 
     ResourceCache() {
@@ -95,6 +99,7 @@ public synchronized PrismObject<ResourceType> get(String oid, String version, Ge
 			try {
 				cachedResource.checkImmutability();
 			} catch (IllegalStateException ex) {
+				LOGGER.error("Failed immutability test", ex);
 				// todo still need proper fix https://jira.evolveum.com/browse/MID-4574
 				return null;
 			}