diff --git a/report/edge_metadatas.go b/report/edge_metadatas.go
index 67dc95587..3c2705658 100644
--- a/report/edge_metadatas.go
+++ b/report/edge_metadatas.go
@@ -79,7 +79,7 @@ func (c EdgeMetadatas) Merge(other EdgeMetadatas) EdgeMetadatas {
 	}
 	iter.ForEach(func(key string, otherVal interface{}) {
 		if val, ok := output.Lookup(key); ok {
-			output = output.Set(key, otherVal.(EdgeMetadata).Merge(val.(EdgeMetadata)))
+			output = output.Set(key, val.(EdgeMetadata).Merge(otherVal.(EdgeMetadata)))
 		} else {
 			output = output.Set(key, otherVal)
 		}
diff --git a/report/sets.go b/report/sets.go
index 582899c48..b81918bee 100644
--- a/report/sets.go
+++ b/report/sets.go
@@ -92,7 +92,7 @@ func (s Sets) Merge(other Sets) Sets {
 	iter.ForEach(func(key string, value interface{}) {
 		set := value.(StringSet)
 		if existingSet, ok := result.Lookup(key); ok {
-			set = set.Merge(existingSet.(StringSet))
+			set = existingSet.(StringSet).Merge(set)
 		}
 		result = result.Set(key, set)
 	})
diff --git a/report/table.go b/report/table.go
index 10d4aa40c..675477148 100644
--- a/report/table.go
+++ b/report/table.go
@@ -163,7 +163,7 @@ func (t TableTemplates) Merge(other TableTemplates) TableTemplates {
 	}
 	for k, v := range other {
 		if existing, ok := result[k]; ok {
-			result[k] = v.Merge(existing)
+			result[k] = existing.Merge(v)
 		} else {
 			result[k] = v
 		}
diff --git a/report/topology.go b/report/topology.go
index 1beba4f79..ddfb4a859 100644
--- a/report/topology.go
+++ b/report/topology.go
@@ -181,7 +181,7 @@ func (n Nodes) Merge(other Nodes) Nodes {
 	}
 	for k, v := range other {
 		if n, ok := cp[k]; ok { // don't overwrite
-			cp[k] = v.Merge(n)
+			cp[k] = n.Merge(v)
 		} else {
 			cp[k] = v
 		}