diff --git a/alphabet/alphabet.tpl b/alphabet/alphabet.tpl
index 3ababbc..ffce5e2 100644
--- a/alphabet/alphabet.tpl
+++ b/alphabet/alphabet.tpl
@@ -119,7 +119,13 @@ func Vote(candidate []byte) {
 
 	address := runtime.GetExecutingScriptHash()
 
-	_ = engine.AppCall([]byte(neoHash), "vote", address, candidate)
+	ok := engine.AppCall([]byte(neoHash), "vote", address, candidate).(bool)
+	if ok {
+		runtime.Log("successfully voted for validator")
+	} else {
+		runtime.Log("vote has been failed")
+	}
+
 
 	return
 }
diff --git a/alphabet/az/az_contract.go b/alphabet/az/az_contract.go
index 34bf7e2..8528be9 100644
--- a/alphabet/az/az_contract.go
+++ b/alphabet/az/az_contract.go
@@ -119,7 +119,12 @@ func Vote(candidate []byte) {
 
 	address := runtime.GetExecutingScriptHash()
 
-	_ = engine.AppCall([]byte(neoHash), "vote", address, candidate)
+	ok := engine.AppCall([]byte(neoHash), "vote", address, candidate).(bool)
+	if ok {
+		runtime.Log("successfully voted for validator")
+	} else {
+		runtime.Log("vote has been failed")
+	}
 
 	return
 }
diff --git a/alphabet/buky/buky_contract.go b/alphabet/buky/buky_contract.go
index a4d549c..7cf223c 100644
--- a/alphabet/buky/buky_contract.go
+++ b/alphabet/buky/buky_contract.go
@@ -119,7 +119,12 @@ func Vote(candidate []byte) {
 
 	address := runtime.GetExecutingScriptHash()
 
-	_ = engine.AppCall([]byte(neoHash), "vote", address, candidate)
+	ok := engine.AppCall([]byte(neoHash), "vote", address, candidate).(bool)
+	if ok {
+		runtime.Log("successfully voted for validator")
+	} else {
+		runtime.Log("vote has been failed")
+	}
 
 	return
 }
diff --git a/alphabet/dobro/dobro_contract.go b/alphabet/dobro/dobro_contract.go
index 537b5fd..b804fc7 100644
--- a/alphabet/dobro/dobro_contract.go
+++ b/alphabet/dobro/dobro_contract.go
@@ -119,7 +119,12 @@ func Vote(candidate []byte) {
 
 	address := runtime.GetExecutingScriptHash()
 
-	_ = engine.AppCall([]byte(neoHash), "vote", address, candidate)
+	ok := engine.AppCall([]byte(neoHash), "vote", address, candidate).(bool)
+	if ok {
+		runtime.Log("successfully voted for validator")
+	} else {
+		runtime.Log("vote has been failed")
+	}
 
 	return
 }
diff --git a/alphabet/glagoli/glagoli_contract.go b/alphabet/glagoli/glagoli_contract.go
index 4c57cf2..5905322 100644
--- a/alphabet/glagoli/glagoli_contract.go
+++ b/alphabet/glagoli/glagoli_contract.go
@@ -119,7 +119,12 @@ func Vote(candidate []byte) {
 
 	address := runtime.GetExecutingScriptHash()
 
-	_ = engine.AppCall([]byte(neoHash), "vote", address, candidate)
+	ok := engine.AppCall([]byte(neoHash), "vote", address, candidate).(bool)
+	if ok {
+		runtime.Log("successfully voted for validator")
+	} else {
+		runtime.Log("vote has been failed")
+	}
 
 	return
 }
diff --git a/alphabet/jest/jest_contract.go b/alphabet/jest/jest_contract.go
index e0cf34b..36b87d3 100644
--- a/alphabet/jest/jest_contract.go
+++ b/alphabet/jest/jest_contract.go
@@ -119,7 +119,12 @@ func Vote(candidate []byte) {
 
 	address := runtime.GetExecutingScriptHash()
 
-	_ = engine.AppCall([]byte(neoHash), "vote", address, candidate)
+	ok := engine.AppCall([]byte(neoHash), "vote", address, candidate).(bool)
+	if ok {
+		runtime.Log("successfully voted for validator")
+	} else {
+		runtime.Log("vote has been failed")
+	}
 
 	return
 }
diff --git a/alphabet/vedi/vedi_contract.go b/alphabet/vedi/vedi_contract.go
index 286534c..090e15f 100644
--- a/alphabet/vedi/vedi_contract.go
+++ b/alphabet/vedi/vedi_contract.go
@@ -119,7 +119,12 @@ func Vote(candidate []byte) {
 
 	address := runtime.GetExecutingScriptHash()
 
-	_ = engine.AppCall([]byte(neoHash), "vote", address, candidate)
+	ok := engine.AppCall([]byte(neoHash), "vote", address, candidate).(bool)
+	if ok {
+		runtime.Log("successfully voted for validator")
+	} else {
+		runtime.Log("vote has been failed")
+	}
 
 	return
 }
diff --git a/alphabet/zhivete/zhivete_contract.go b/alphabet/zhivete/zhivete_contract.go
index 2a53709..8aa2824 100644
--- a/alphabet/zhivete/zhivete_contract.go
+++ b/alphabet/zhivete/zhivete_contract.go
@@ -119,7 +119,12 @@ func Vote(candidate []byte) {
 
 	address := runtime.GetExecutingScriptHash()
 
-	_ = engine.AppCall([]byte(neoHash), "vote", address, candidate)
+	ok := engine.AppCall([]byte(neoHash), "vote", address, candidate).(bool)
+	if ok {
+		runtime.Log("successfully voted for validator")
+	} else {
+		runtime.Log("vote has been failed")
+	}
 
 	return
 }