diff --git a/Pod/Classes/TSMessage.h b/Pod/Classes/TSMessage.h
index f10b3f1a..05102d27 100755
--- a/Pod/Classes/TSMessage.h
+++ b/Pod/Classes/TSMessage.h
@@ -151,9 +151,9 @@ typedef NS_ENUM(NSInteger,TSMessageNotificationDuration) {
                                    image:(UIImage *)image
                                     type:(TSMessageNotificationType)type
                                 duration:(NSTimeInterval)duration
-                                callback:(void (^)())callback
+                                callback:(void (^)(void))callback
                              buttonTitle:(NSString *)buttonTitle
-                          buttonCallback:(void (^)())buttonCallback
+                          buttonCallback:(void (^)(void))buttonCallback
                               atPosition:(TSMessageNotificationPosition)messagePosition
                     canBeDismissedByUser:(BOOL)dismissingEnabled;
 
@@ -169,7 +169,7 @@ typedef NS_ENUM(NSInteger,TSMessageNotificationDuration) {
  @return YES if the currently displayed notification was successfully dismissed. NO if no notification
  was currently displayed.
  */
-+ (BOOL)dismissActiveNotificationWithCompletion:(void (^)())completion;
++ (BOOL)dismissActiveNotificationWithCompletion:(void (^)(void))completion;
 
 /** Use this method to set a default view controller to display the messages in */
 + (void)setDefaultViewController:(UIViewController *)defaultViewController;
diff --git a/Pod/Classes/TSMessage.m b/Pod/Classes/TSMessage.m
index 02deac66..6f0f82b7 100755
--- a/Pod/Classes/TSMessage.m
+++ b/Pod/Classes/TSMessage.m
@@ -125,9 +125,9 @@ + (void)showNotificationInViewController:(UIViewController *)viewController
                                    image:(UIImage *)image
                                     type:(TSMessageNotificationType)type
                                 duration:(NSTimeInterval)duration
-                                callback:(void (^)())callback
+                                callback:(void (^)(void))callback
                              buttonTitle:(NSString *)buttonTitle
-                          buttonCallback:(void (^)())buttonCallback
+                          buttonCallback:(void (^)(void))buttonCallback
                               atPosition:(TSMessageNotificationPosition)messagePosition
                     canBeDismissedByUser:(BOOL)dismissingEnabled
 {
@@ -328,7 +328,7 @@ - (void)fadeOutNotification:(TSMessageView *)currentView
     [self fadeOutNotification:currentView animationFinishedBlock:nil];
 }
 
-- (void)fadeOutNotification:(TSMessageView *)currentView animationFinishedBlock:(void (^)())animationFinished
+- (void)fadeOutNotification:(TSMessageView *)currentView animationFinishedBlock:(void (^)(void))animationFinished
 {
     currentView.messageIsFullyDisplayed = NO;
     [NSObject cancelPreviousPerformRequestsWithTarget:self
@@ -379,7 +379,7 @@ + (BOOL)dismissActiveNotification
     return [self dismissActiveNotificationWithCompletion:nil];
 }
 
-+ (BOOL)dismissActiveNotificationWithCompletion:(void (^)())completion
++ (BOOL)dismissActiveNotificationWithCompletion:(void (^)(void))completion
 {
     if ([[TSMessage sharedMessage].messages count] == 0) return NO;
     
diff --git a/Pod/Classes/TSMessageView.h b/Pod/Classes/TSMessageView.h
index 0d22549d..3f5b92c9 100755
--- a/Pod/Classes/TSMessageView.h
+++ b/Pod/Classes/TSMessageView.h
@@ -65,9 +65,9 @@
                type:(TSMessageNotificationType)notificationType
            duration:(CGFloat)duration
    inViewController:(UIViewController *)viewController
-           callback:(void (^)())callback
+           callback:(void (^)(void))callback
         buttonTitle:(NSString *)buttonTitle
-     buttonCallback:(void (^)())buttonCallback
+     buttonCallback:(void (^)(void))buttonCallback
          atPosition:(TSMessageNotificationPosition)position
 canBeDismissedByUser:(BOOL)dismissingEnabled;
 
diff --git a/Pod/Classes/TSMessageView.m b/Pod/Classes/TSMessageView.m
index 03893b7c..34e482c0 100755
--- a/Pod/Classes/TSMessageView.m
+++ b/Pod/Classes/TSMessageView.m
@@ -187,9 +187,9 @@ - (id)initWithTitle:(NSString *)title
                type:(TSMessageNotificationType)aNotificationType
            duration:(CGFloat)duration
    inViewController:(UIViewController *)viewController
-           callback:(void (^)())callback
+           callback:(void (^)(void))callback
         buttonTitle:(NSString *)buttonTitle
-     buttonCallback:(void (^)())buttonCallback
+     buttonCallback:(void (^)(void))buttonCallback
          atPosition:(TSMessageNotificationPosition)position
 canBeDismissedByUser:(BOOL)dismissingEnabled
 {