diff --git a/CWStatusBarNotification.podspec b/CWStatusBarNotification.podspec
index 81fde64..6250e0f 100644
--- a/CWStatusBarNotification.podspec
+++ b/CWStatusBarNotification.podspec
@@ -1,6 +1,6 @@
 Pod::Spec.new do |s|
   s.name         = "CWStatusBarNotification"
-  s.version      = "2.3.1"
+  s.version      = "2.3.2"
   s.summary      = "A library that creates status bar notifications."
   s.description  = "CWStatusBarNotification is a library allows you to present a beautiful text-based notification in the status bar."
   s.homepage     = "https://github.com/cezarywojcik/CWStatusBarNotification"
diff --git a/CWStatusBarNotification/CWStatusBarNotification.m b/CWStatusBarNotification/CWStatusBarNotification.m
index 61992d3..c73b05c 100644
--- a/CWStatusBarNotification/CWStatusBarNotification.m
+++ b/CWStatusBarNotification/CWStatusBarNotification.m
@@ -194,7 +194,11 @@ - (CWStatusBarNotification *)init
     self = [super init];
     if (self) {
         // set default
-        self.notificationLabelBackgroundColor = [[UIApplication sharedApplication] delegate].window.tintColor;
+        if ([[UIApplication sharedApplication] delegate].window != nil) {
+            self.notificationLabelBackgroundColor = [[UIApplication sharedApplication] delegate].window.tintColor;
+        } else {
+            self.notificationLabelBackgroundColor = [UIColor blackColor];
+        }
         self.notificationLabelTextColor = [UIColor whiteColor];
         self.notificationLabelFont = [UIFont systemFontOfSize:FONT_SIZE];
         self.notificationLabelHeight = 0.0;
diff --git a/README.md b/README.md
index 5eea7c0..1dc74a9 100644
--- a/README.md
+++ b/README.md
@@ -20,7 +20,7 @@ Works for iPhone and iPad.
 
 ### CocoaPods
 
-`pod 'CWStatusBarNotification', '~> 2.3.1'`
+`pod 'CWStatusBarNotification', '~> 2.3.2'`
 
 ### Manual