diff --git a/addons/sammi/lib/sammi_api.gd b/addons/sammi/lib/sammi_api.gd
index dbd35c6..340db5c 100644
--- a/addons/sammi/lib/sammi_api.gd
+++ b/addons/sammi/lib/sammi_api.gd
@@ -74,13 +74,16 @@ func set_variable(name: String, value: Variant, button_id: String = "") -> bool:
 		last_error_description = response.error_message
 		return false
 
-func delete_variable(name: String, button_id) -> bool:
-	var api_path: String = "/api" % name
+func delete_variable(name: String, button_id: String = "") -> bool:
+	var api_path: String = "/api"
 	var req: Dictionary = {
 		"request": "deleteVariable",
-		"name": name,
-		"buttonID": button_id
+		"name": name
 	}
+	
+	if button_id != "":
+		req["buttonID"] = button_id
+	
 	client.request(SammiClient.Method.POST, api_path, JSON.stringify(req))
 	var response: SammiClient.SammiResponse = await client.request_completed
 	if response.code == 200:
diff --git a/addons/sammi/lib/sammi_client.gd b/addons/sammi/lib/sammi_client.gd
index ac40636..db23a3a 100644
--- a/addons/sammi/lib/sammi_client.gd
+++ b/addons/sammi/lib/sammi_client.gd
@@ -43,6 +43,7 @@ func request(method: Method, api_path: String, body: String) -> void:
 
 	self.query = api_path
 	self.body = body
+	self.method = method
 	self.client = StreamPeerTCP.new()
 	self.client.connect_to_host(host, port)
 	self.state = State.CONNECTING
@@ -51,11 +52,6 @@ func _process(_delta: float) -> void:
 	if not client:
 		return
 	
-	if state == State.CLOSED:
-		client.disconnect_from_host()
-		client = null
-		return
-	
 	client.poll()
 	if client.get_status() == StreamPeerTCP.Status.STATUS_CONNECTED and state == State.CONNECTING:
 		state = State.REQUESTING
@@ -130,8 +126,12 @@ func _read_response() -> void:
 		buffer.append_array(chunk[1])
 	else:
 		response = SammiResponse.new(headers, buffer, query)
-		request_completed.emit(response)
 		state = State.CLOSED
+		headers = []
+		buffer = []
+		client.disconnect_from_host()
+		client = null
+		request_completed.emit(response)
 
 
 class SammiResponse: