diff --git a/Source/NSNumber.m b/Source/NSNumber.m
index a18daadaa..70faba695 100644
--- a/Source/NSNumber.m
+++ b/Source/NSNumber.m
@@ -88,7 +88,8 @@ GSNumberInfoFromObject(NSNumber *o)
 		break;
 	    }
 	}
-      info = (GSNumberInfo*)objc_malloc(sizeof(GSNumberInfo));
+      info = (GSNumberInfo*)NSZoneMalloc(NSDefaultMallocZone(),
+	(sizeof(GSNumberInfo)));
       info->typeLevel = order;
 
       info->getValue = (void (*)(NSNumber*, SEL, void*))
diff --git a/Source/NSScanner.m b/Source/NSScanner.m
index f8e7666b0..a16ab5ef6 100644
--- a/Source/NSScanner.m
+++ b/Source/NSScanner.m
@@ -149,7 +149,7 @@ typedef struct {
 	{
 	  _isUnicode = NO;
 	  _string = [GSCString_class allocWithZone: NSDefaultMallocZone()];
-	  _string = [_string initWithCString: ((ivars)aString)->_contents.u
+	  _string = [_string initWithCString: ((ivars)aString)->_contents.c
 				      length: ((ivars)aString)->_count];
 	}
     }
diff --git a/Source/NSTask.m b/Source/NSTask.m
index 61ef66a2d..e9e87536b 100644
--- a/Source/NSTask.m
+++ b/Source/NSTask.m
@@ -582,7 +582,7 @@ GSCheckTasks()
       [args appendString: @" "];
       [args appendString: arg];
     }
-  c_args = objc_malloc([args cStringLength]+1);
+  c_args = NSZoneMalloc(NSDefaultMallocZone(), [args cStringLength]+1);
   [args getCString: c_args];
 
   memset (&start_info, 0, sizeof(start_info));
@@ -602,7 +602,7 @@ GSCheckTasks()
 			 [[self currentDirectoryPath] fileSystemRepresentation],
 			 &start_info,
 			 &proc_info);
-  objc_free(c_args);
+  NSZoneFree(NSDefaultMallocZone(), c_args);
   if (result == 0)
     {
       NSLog(@"Error launching task: %@", lpath);