Index: uspace/app/df/df.c
===================================================================
--- uspace/app/df/df.c	(revision 120d5bc8e4646bd84d307843a97703967e6f22c5)
+++ uspace/app/df/df.c	(revision 132ab5d1e75253f9bae910b2748a4c13efe7e71f)
@@ -40,4 +40,5 @@
 #include <stdlib.h>
 #include <stdint.h>
+#include <str_error.h>
 #include <getopt.h>
 #include <errno.h>
@@ -118,6 +119,6 @@
 				return 1;
 		} else {
-			fprintf(stderr, "Cannot get information for '%s' (%d).\n",
-			    mtab_ent->mp, errno);
+			fprintf(stderr, "Cannot get information for '%s' (%s).\n",
+			    mtab_ent->mp, str_error(errno));
 		}
 	}