diff --git a/rpc/api.go b/rpc/api.go
index 90d09d2811..337611114a 100644
--- a/rpc/api.go
+++ b/rpc/api.go
@@ -400,7 +400,7 @@ func (self *EthereumApi) MessagesChanged(id int, reply *interface{}) error {
 }
 
 func (p *EthereumApi) WhisperPost(args *WhisperMessageArgs, reply *interface{}) error {
-	err := p.xeth().Whisper().Post(args.Payload, args.To, args.From, args.Topic, args.Priority, args.Ttl)
+	err := p.xeth().Whisper().Post(args.Payload, args.To, args.From, args.Topics, args.Priority, args.Ttl)
 	if err != nil {
 		return err
 	}
diff --git a/rpc/args.go b/rpc/args.go
index 26a61b1a10..d4d8070608 100644
--- a/rpc/args.go
+++ b/rpc/args.go
@@ -367,7 +367,7 @@ type WhisperMessageArgs struct {
 	Payload  string
 	To       string
 	From     string
-	Topic    []string
+	Topics   []string
 	Priority uint32
 	Ttl      uint32
 }
@@ -377,7 +377,7 @@ func (args *WhisperMessageArgs) UnmarshalJSON(b []byte) (err error) {
 		Payload  string
 		To       string
 		From     string
-		Topic    []string
+		Topics   []string
 		Priority string
 		Ttl      string
 	}
@@ -392,7 +392,7 @@ func (args *WhisperMessageArgs) UnmarshalJSON(b []byte) (err error) {
 	args.Payload = obj[0].Payload
 	args.To = obj[0].To
 	args.From = obj[0].From
-	args.Topic = obj[0].Topic
+	args.Topics = obj[0].Topics
 	args.Priority = uint32(ethutil.Big(obj[0].Priority).Int64())
 	args.Ttl = uint32(ethutil.Big(obj[0].Ttl).Int64())
 
diff --git a/rpc/args_test.go b/rpc/args_test.go
index ec5400f3fc..0276245001 100644
--- a/rpc/args_test.go
+++ b/rpc/args_test.go
@@ -270,7 +270,7 @@ func TestFilterOptions(t *testing.T) {
 		t.Errorf("Address shoud be %#v but is %#v", expected.Address, args.Address)
 	}
 
-	// if expected.Topic != args.Topic {
+	// if expected.Topics != args.Topics {
 	// 	t.Errorf("Topic shoud be %#v but is %#v", expected.Topic, args.Topic)
 	// }
 }
@@ -316,7 +316,7 @@ func TestWhisperMessageArgs(t *testing.T) {
 	expected.Payload = "0x68656c6c6f20776f726c64"
 	expected.Priority = 100
 	expected.Ttl = 100
-	expected.Topic = []string{"0x68656c6c6f20776f726c64"}
+	expected.Topics = []string{"0x68656c6c6f20776f726c64"}
 
 	args := new(WhisperMessageArgs)
 	if err := json.Unmarshal([]byte(input), &args); err != nil {
@@ -343,7 +343,7 @@ func TestWhisperMessageArgs(t *testing.T) {
 		t.Errorf("Priority shoud be %#v but is %#v", expected.Priority, args.Priority)
 	}
 
-	// if expected.Topic != args.Topic {
+	// if expected.Topics != args.Topics {
 	// 	t.Errorf("Topic shoud be %#v but is %#v", expected.Topic, args.Topic)
 	// }
 }