diff --git a/SocketIOClientSwift/SocketParser.swift b/SocketIOClientSwift/SocketParser.swift
index 48fd29d..896bd5b 100644
--- a/SocketIOClientSwift/SocketParser.swift
+++ b/SocketIOClientSwift/SocketParser.swift
@@ -98,7 +98,7 @@ class SocketParser {
             }
         }
         
-        let d = message[parser.currentIndex.advancedBy(1)...message.endIndex.predecessor()]
+        let d = message[parser.currentIndex.advancedBy(1)..<message.endIndex]
         let noPlaceholders = d["(\\{\"_placeholder\":true,\"num\":(\\d*)\\})"] ~= "\"~~$2\""
         let data = parseData(noPlaceholders) as? [AnyObject] ?? [noPlaceholders]
         
diff --git a/SocketIOClientSwift/SocketStringReader.swift b/SocketIOClientSwift/SocketStringReader.swift
index 9da536c..93caf16 100644
--- a/SocketIOClientSwift/SocketStringReader.swift
+++ b/SocketIOClientSwift/SocketStringReader.swift
@@ -53,7 +53,7 @@ struct SocketStringReader {
         let range = Range<String.Index>(start: currentIndex, end: message.endIndex)
         let subString = message.substringWithRange(range)
         guard let foundRange = subString.rangeOfString(string) else {
-            let restOfString = message[currentIndex...message.endIndex.predecessor()]
+            let restOfString = message[currentIndex..<message.endIndex]
             currentIndex = message.endIndex
             
             return restOfString