diff --git a/.gitignore b/.gitignore
index 7be657e..cbb76d2 100644
--- a/.gitignore
+++ b/.gitignore
@@ -8,3 +8,4 @@
 
 GCDKit.xcodeproj/xcuserdata
 GCDKit.xcodeproj/project.xcworkspace/xcuserdata
+DerivedData
diff --git a/GCDKit.podspec b/GCDKit.podspec
index 157107e..cfa934e 100644
--- a/GCDKit.podspec
+++ b/GCDKit.podspec
@@ -1,6 +1,6 @@
 Pod::Spec.new do |s|
     s.name = "GCDKit"
-    s.version = "1.1.7"
+    s.version = "1.1.8"
     s.license = "MIT"
     s.summary = "GCDKit is Grand Central Dispatch simplified with Swift"
     s.homepage = "https://github.com/JohnEstropia/GCDKit"
diff --git a/GCDKit/GCDQueue.swift b/GCDKit/GCDQueue.swift
index fd7d76f..1e1f3ad 100644
--- a/GCDKit/GCDQueue.swift
+++ b/GCDKit/GCDQueue.swift
@@ -71,7 +71,7 @@ public enum GCDQueue {
     /**
     Creates a custom queue to which blocks can be submitted serially.
     
-    - parameter label: A String label to attach to the queue to uniquely identify it in debugging tools such as Instruments, sample, stackshots, and crash reports.
+    - parameter label: An optional string label to attach to the queue to uniquely identify it in debugging tools such as Instruments, sample, stackshots, and crash reports.
     - returns: A new custom serial queue.
     */
     public static func createSerial(label: String? = nil) -> GCDQueue {
@@ -82,7 +82,7 @@ public enum GCDQueue {
     /**
     Creates a custom queue and specifies a target queue to which blocks can be submitted serially.
     
-    - parameter label: A String label to attach to the queue to uniquely identify it in debugging tools such as Instruments, sample, stackshots, and crash reports.
+    - parameter label: An optional string label to attach to the queue to uniquely identify it in debugging tools such as Instruments, sample, stackshots, and crash reports.
     - parameter targetQueue: The new target queue for the custom queue.
     - returns: A new custom serial queue.
     */
@@ -105,7 +105,7 @@ public enum GCDQueue {
     /**
     Creates a custom queue and specifies a target queue to which blocks can be submitted concurrently.
     
-    - parameter label: A string label to attach to the queue to uniquely identify it in debugging tools such as Instruments, sample, stackshots, and crash reports.
+    - parameter label: An optional string label to attach to the queue to uniquely identify it in debugging tools such as Instruments, sample, stackshots, and crash reports.
     - parameter targetQueue: The new target queue for the custom queue.
     - returns: A new custom concurrent queue.
     */
@@ -302,11 +302,11 @@ public enum GCDQueue {
         }
     }
     
-    private static func createCustom(isConcurrent isConcurrent: Bool, label: String? = nil, targetQueue: GCDQueue?) -> GCDQueue {
+    private static func createCustom(isConcurrent isConcurrent: Bool, label: String?, targetQueue: GCDQueue?) -> GCDQueue {
         
         let queue = GCDQueue.Custom(
             dispatch_queue_create(
-                (label as NSString?)?.UTF8String ?? nil,
+                label.flatMap { ($0 as NSString).UTF8String } ?? nil,
                 (isConcurrent ? DISPATCH_QUEUE_CONCURRENT : DISPATCH_QUEUE_SERIAL)
             )
         )
diff --git a/GCDKit/Info.plist b/GCDKit/Info.plist
index a553e1c..6a6a435 100644
--- a/GCDKit/Info.plist
+++ b/GCDKit/Info.plist
@@ -15,7 +15,7 @@
 	<key>CFBundlePackageType</key>
 	<string>FMWK</string>
 	<key>CFBundleShortVersionString</key>
-	<string>1.1.7</string>
+	<string>1.1.8</string>
 	<key>CFBundleSignature</key>
 	<string>????</string>
 	<key>CFBundleVersion</key>