diff --git a/ontology-generator/ontology/fta-fmea-model.ttl b/ontology-generator/ontology/fta-fmea-model.ttl
index a5283f08..e062987f 100644
--- a/ontology-generator/ontology/fta-fmea-model.ttl
+++ b/ontology-generator/ontology/fta-fmea-model.ttl
@@ -84,6 +84,11 @@ fta-fmea:has-estimate rdf:type owl:ObjectProperty ;
                       rdfs:subPropertyOf fta-fmea:has-general-estimate .
 
 
+###  http://onto.fel.cvut.cz/ontologies/fta-fmea-application/has-manual-estimate
+fta-fmea:has-manual-estimate rdf:type owl:ObjectProperty ;
+                      rdfs:subPropertyOf fta-fmea:has-general-estimate .
+
+
 ###  http://onto.fel.cvut.cz/ontologies/fta-fmea-application/has-event-type
 fta-fmea:has-event-type rdf:type owl:ObjectProperty ;
                         rdfs:domain fta-fmea:fha-fault-event ;
diff --git a/src/main/java/cz/cvut/kbss/analysis/model/FailureRate.java b/src/main/java/cz/cvut/kbss/analysis/model/FailureRate.java
index 33fe9a46..41cede8d 100644
--- a/src/main/java/cz/cvut/kbss/analysis/model/FailureRate.java
+++ b/src/main/java/cz/cvut/kbss/analysis/model/FailureRate.java
@@ -22,4 +22,7 @@ public class FailureRate extends AbstractEntity{
     @OWLObjectProperty(iri = Vocabulary.s_p_has_prediction, cascade = CascadeType.ALL, fetch = FetchType.EAGER)
     private FailureRateEstimate prediction;
 
+    @OWLObjectProperty(iri = Vocabulary.s_p_has_manual_estimate, cascade = CascadeType.ALL, fetch = FetchType.EAGER)
+    private FailureRateEstimate manual;
+
 }