diff --git a/Source/NSPopover.m b/Source/NSPopover.m
index 54a26df71..12f757847 100644
--- a/Source/NSPopover.m
+++ b/Source/NSPopover.m
@@ -193,10 +193,10 @@
       BOOL loaded = [NSBundle loadNibNamed: controllerClassName
 				     owner: controller];
       if (!loaded)
-	{
+        {
 	  [NSException raise: NSInternalInconsistencyException
 		      format: @"Could not load controller %@", controllerClassName];
-	}
+        }
       else
         {
           if ([controller view] == nil)