diff --git a/src/expand.c b/src/expand.c
index 7b7ecac50..e3584601a 100644
--- a/src/expand.c
+++ b/src/expand.c
@@ -340,7 +340,7 @@ expand (void)
 		  while (++column < next_tab_column)
 		    if (putchar (' ') < 0)
 		      error (EXIT_FAILURE, errno, _("write error"));
-		      
+
 		  c = ' ';
 		}
 	      else if (c == '\b')