diff --git a/whisper/whisperv5/filter_test.go b/whisper/whisperv5/filter_test.go
index 41ebb71146..f9ae6673ff 100644
--- a/whisper/whisperv5/filter_test.go
+++ b/whisper/whisperv5/filter_test.go
@@ -155,11 +155,72 @@ func TestInstallSymKeyGeneratesHash(t *testing.T) {
 	for i, b := range filter.SymKeyHash {
 		if b != initialSymKeyHash[i] {
 			t.Fatalf("The filter's symmetric key hash was not properly generated by Install")
-			break
 		}
 	}
 }
 
+func TestInstallIdenticalFilters(t *testing.T) {
+	InitSingleTest()
+
+	w := New(&Config{})
+	filters := NewFilters(w)
+	filter1, _ := generateFilter(t, true)
+
+	// Copy the first filter since some of its fields
+	// are randomly gnerated.
+	filter2 := &Filter{
+		KeySym:   filter1.KeySym,
+		Topics:   filter1.Topics,
+		PoW:      filter1.PoW,
+		AllowP2P: filter1.AllowP2P,
+		Messages: make(map[common.Hash]*ReceivedMessage),
+	};
+
+	_, err := filters.Install(filter1)
+
+	if err != nil {
+		t.Fatalf("Error installing the first filter: %v", err);
+	}
+
+	_, err = filters.Install(filter2)
+
+	if err != nil {
+		t.Fatalf("Error installing the second filter: %v", err);
+	}
+
+	params, err := generateMessageParams()
+	if err != nil {
+		t.Fatal("Error generating message parameters: %v", err);
+	}
+
+	params.KeySym = filter1.KeySym
+	params.Topic = BytesToTopic(filter1.Topics[0])
+
+	filter1.Src = &params.Src.PublicKey;
+	filter2.Src = &params.Src.PublicKey;
+
+	sentMessage, err := NewSentMessage(params)
+	if err != nil {
+		t.Fatalf("failed to create new message with seed %d: %s.", seed, err)
+	}
+	env, err := sentMessage.Wrap(params)
+	if err != nil {
+		t.Fatalf("failed Wrap with seed %d: %s.", seed, err)
+	}
+	msg := env.Open(filter1)
+	if msg == nil {
+		t.Fatalf("failed to Open with filter1")
+	}
+
+	if ! filter1.MatchEnvelope(env) {
+		t.Fatalf("failed matching with the first filter")
+	}
+
+	if ! filter2.MatchMessage(msg) {
+		t.Fatalf("failed matching with the second filter")
+	}
+}
+
 func TestComparePubKey(t *testing.T) {
 	InitSingleTest()