diff --git a/SocketIO-MacTests/SocketSideEffectTest.swift b/SocketIO-MacTests/SocketSideEffectTest.swift
index ab12640..f2e43dd 100644
--- a/SocketIO-MacTests/SocketSideEffectTest.swift
+++ b/SocketIO-MacTests/SocketSideEffectTest.swift
@@ -8,6 +8,7 @@
 
 import XCTest
 @testable import SocketIO
+@testable import StarscreamSocketIO
 
 class SocketSideEffectTest: XCTestCase {
     func testInitialCurrentAck() {
diff --git a/Source/SocketIO/Engine/SocketEngine.swift b/Source/SocketIO/Engine/SocketEngine.swift
index d6994a2..2a4e699 100644
--- a/Source/SocketIO/Engine/SocketEngine.swift
+++ b/Source/SocketIO/Engine/SocketEngine.swift
@@ -223,11 +223,7 @@ public final class SocketEngine : NSObject, URLSessionDelegate, SocketEnginePoll
 
     private func handleBase64(message: String) {
         // binary in base64 string
-        guard let noPrefix = String(message[message.index(message.startIndex, offsetBy: 2)..<message.endIndex]) else {
-            client?.parseEngineBinaryData(Data())
-
-            return
-        }
+        let noPrefix = String(message[message.index(message.startIndex, offsetBy: 2)..<message.endIndex])
 
         if let data = Data(base64Encoded: noPrefix, options: .ignoreUnknownCharacters) {
             client?.parseEngineBinaryData(data)