Index: uspace/app/df/df.c
===================================================================
--- uspace/app/df/df.c	(revision 523a4b6a750102f283a56064a16dba9c541960f8)
+++ uspace/app/df/df.c	(revision 9dbdda91731f77f12ce8c42162b0f95a9b75d72a)
@@ -186,6 +186,6 @@
 static void print_usage(void)
 {
-  printf("syntax: %s [-h] [-i]\n", NAME);
-  printf("  u : Print usage.\n");  
+  printf("syntax: %s [-u] [-h] [-b <size>] \n", NAME);
+  printf("  u : Show usage.\n");  
   printf("  h : \"Human-readable\" output.\n");  
   printf("  b : Scale block sizes by selected size.\n");