@@ -301,11 +301,11 @@
 + (instancetype)timerWithTimeInterval: (of_time_interval_t)timeInterval
 			      repeats: (bool)repeats
 				block: (of_timer_block_t)block;
 #endif
 
-- init OF_UNAVAILABLE;
+- (instancetype)init OF_UNAVAILABLE;
 
 /*!
  * @brief Initializes an already allocated timer with the specified time
  *	  interval.
  *
@@ -315,15 +315,15 @@
  * @param target The target on which to call the selector
  * @param selector The selector to call on the target
  * @param repeats Whether the timer repeats after it has been executed
  * @return An initialized timer
  */
-- initWithFireDate: (OFDate *)fireDate
-	  interval: (of_time_interval_t)interval
-	    target: (id)target
-	  selector: (SEL)selector
-	   repeats: (bool)repeats;
+- (instancetype)initWithFireDate: (OFDate *)fireDate
+			interval: (of_time_interval_t)interval
+			  target: (id)target
+			selector: (SEL)selector
+			 repeats: (bool)repeats;
 
 /*!
  * @brief Initializes an already allocated timer with the specified time
  *	  interval.
  *
@@ -334,16 +334,16 @@
  * @param selector The selector to call on the target
  * @param object An object to pass when calling the selector on the target
  * @param repeats Whether the timer repeats after it has been executed
  * @return An initialized timer
  */
-- initWithFireDate: (OFDate *)fireDate
-	  interval: (of_time_interval_t)interval
-	    target: (id)target
-	  selector: (SEL)selector
-	    object: (nullable id)object
-	   repeats: (bool)repeats;
+- (instancetype)initWithFireDate: (OFDate *)fireDate
+			interval: (of_time_interval_t)interval
+			  target: (id)target
+			selector: (SEL)selector
+			  object: (nullable id)object
+			 repeats: (bool)repeats;
 
 /*!
  * @brief Initializes an already allocated timer with the specified time
  *	  interval.
  *
@@ -357,17 +357,17 @@
  * @param object2 The second object to pass when calling the selector on the
  *		  target
  * @param repeats Whether the timer repeats after it has been executed
  * @return An initialized timer
  */
-- initWithFireDate: (OFDate *)fireDate
-	  interval: (of_time_interval_t)interval
-	    target: (id)target
-	  selector: (SEL)selector
-	    object: (nullable id)object1
-	    object: (nullable id)object2
-	   repeats: (bool)repeats;
+- (instancetype)initWithFireDate: (OFDate *)fireDate
+			interval: (of_time_interval_t)interval
+			  target: (id)target
+			selector: (SEL)selector
+			  object: (nullable id)object1
+			  object: (nullable id)object2
+			 repeats: (bool)repeats;
 
 /*!
  * @brief Initializes an already allocated timer with the specified time
  *	  interval.
  *
@@ -383,18 +383,18 @@
  * @param object3 The third object to pass when calling the selector on the
  *		  target
  * @param repeats Whether the timer repeats after it has been executed
  * @return An initialized timer
  */
-- initWithFireDate: (OFDate *)fireDate
-	  interval: (of_time_interval_t)interval
-	    target: (id)target
-	  selector: (SEL)selector
-	    object: (nullable id)object1
-	    object: (nullable id)object2
-	    object: (nullable id)object3
-	   repeats: (bool)repeats;
+- (instancetype)initWithFireDate: (OFDate *)fireDate
+			interval: (of_time_interval_t)interval
+			  target: (id)target
+			selector: (SEL)selector
+			  object: (nullable id)object1
+			  object: (nullable id)object2
+			  object: (nullable id)object3
+			 repeats: (bool)repeats;
 
 /*!
  * @brief Initializes an already allocated timer with the specified time
  *	  interval.
  *
@@ -412,19 +412,19 @@
  * @param object4 The fourth object to pass when calling the selector on the
  *		  target
  * @param repeats Whether the timer repeats after it has been executed
  * @return An initialized timer
  */
-- initWithFireDate: (OFDate *)fireDate
-	  interval: (of_time_interval_t)interval
-	    target: (id)target
-	  selector: (SEL)selector
-	    object: (nullable id)object1
-	    object: (nullable id)object2
-	    object: (nullable id)object3
-	    object: (nullable id)object4
-	   repeats: (bool)repeats;
+- (instancetype)initWithFireDate: (OFDate *)fireDate
+			interval: (of_time_interval_t)interval
+			  target: (id)target
+			selector: (SEL)selector
+			  object: (nullable id)object1
+			  object: (nullable id)object2
+			  object: (nullable id)object3
+			  object: (nullable id)object4
+			 repeats: (bool)repeats;
 
 #ifdef OF_HAVE_BLOCKS
 /*!
  * @brief Initializes an already allocated timer with the specified time
  *	  interval.
@@ -434,14 +434,14 @@
  *		   a repeating timer
  * @param repeats Whether the timer repeats after it has been executed
  * @param block The block to invoke when the timer fires
  * @return An initialized timer
  */
-- initWithFireDate: (OFDate *)fireDate
-	  interval: (of_time_interval_t)interval
-	   repeats: (bool)repeats
-	     block: (of_timer_block_t)block;
+- (instancetype)initWithFireDate: (OFDate *)fireDate
+			interval: (of_time_interval_t)interval
+			 repeats: (bool)repeats
+			   block: (of_timer_block_t)block;
 #endif
 
 /*!
  * @brief Fires the timer, meaning it will execute the specified selector on the
  *	  target.