diff --git a/Headers/Foundation/NSThread.h b/Headers/Foundation/NSThread.h
index 48d8f6121..498d78592 100644
--- a/Headers/Foundation/NSThread.h
+++ b/Headers/Foundation/NSThread.h
@@ -416,13 +416,13 @@ GS_EXPORT void GSUnregisterCurrentThread (void);
 /**
  * Detaches a new thread with block as its entry point.
  */
-+ (void)detachNewThreadWithBlock: (GSThreadBlock)block;
++ (void) detachNewThreadWithBlock: (GSThreadBlock)block;
 
 /**
  * Initialises a NSThread object with block as the
  * entry point.
  */
-- (instancetype)initWithBlock: (GSThreadBlock)block;
+- (instancetype) initWithBlock: (GSThreadBlock)block;
 #endif // OS_API_VERSION
 
 @end
diff --git a/Source/NSThread.m b/Source/NSThread.m
index 5a4776d07..860e63876 100644
--- a/Source/NSThread.m
+++ b/Source/NSThread.m
@@ -2424,7 +2424,7 @@ - (void) performSelectorInBackground: (SEL)aSelector
 
 @implementation NSThread (BlockAdditions)
 
-+ (void)detachNewThreadWithBlock: (GSThreadBlock)block
++ (void) detachNewThreadWithBlock: (GSThreadBlock)block
 {
   NSThread	*thread;
 
@@ -2434,7 +2434,7 @@ + (void)detachNewThreadWithBlock: (GSThreadBlock)block
   RELEASE(thread);
 }
 
-- (instancetype)initWithBlock: (GSThreadBlock)block
+- (instancetype) initWithBlock: (GSThreadBlock)block
 {
   if (nil != (self = [self init]))
     {