diff --git a/bin/cat/cat.c b/bin/cat/cat.c
--- a/bin/cat/cat.c
+++ b/bin/cat/cat.c
@@ -155,7 +155,7 @@
 		err(EXIT_FAILURE, "unable to create Casper");
 
 	fa = fileargs_cinit(casper, argc, argv, O_RDONLY, 0,
-	    cap_rights_init(&rights, CAP_READ | CAP_FSTAT | CAP_FCNTL),
+	    cap_rights_init(&rights, CAP_READ | CAP_FSTAT | CAP_FCNTL | CAP_SEEK),
 	    FA_OPEN | FA_REALPATH);
 	if (fa == NULL)
 		err(EXIT_FAILURE, "unable to create fileargs");