diff --git a/tools/bpf/bpftool/cgroup.c b/tools/bpf/bpftool/cgroup.c
index ee7a9765c6b32f3eb9e22b79f8a112dd38983405..adbcd84818f7407d3091d91945e971f6f88d50dd 100644
--- a/tools/bpf/bpftool/cgroup.c
+++ b/tools/bpf/bpftool/cgroup.c
@@ -164,7 +164,7 @@ static int do_show(int argc, char **argv)
 
 	cgroup_fd = open(argv[0], O_RDONLY);
 	if (cgroup_fd < 0) {
-		p_err("can't open cgroup %s", argv[1]);
+		p_err("can't open cgroup %s", argv[0]);
 		goto exit;
 	}
 
@@ -345,7 +345,7 @@ static int do_attach(int argc, char **argv)
 
 	cgroup_fd = open(argv[0], O_RDONLY);
 	if (cgroup_fd < 0) {
-		p_err("can't open cgroup %s", argv[1]);
+		p_err("can't open cgroup %s", argv[0]);
 		goto exit;
 	}
 
@@ -403,7 +403,7 @@ static int do_detach(int argc, char **argv)
 
 	cgroup_fd = open(argv[0], O_RDONLY);
 	if (cgroup_fd < 0) {
-		p_err("can't open cgroup %s", argv[1]);
+		p_err("can't open cgroup %s", argv[0]);
 		goto exit;
 	}