diff --git a/coreutils/chroot.c b/coreutils/chroot.c
index 791eb97..2679b1f 100644
--- a/coreutils/chroot.c
+++ b/coreutils/chroot.c
@@ -5,8 +5,8 @@
 #include <errno.h>
 
 int main(const int argc, char **argv) {
-	if (argc < 3 || !strcmp(argv[argc - 1], "-h")) {
-		printf("chroot [dir] [\"command arg\"]\n");
+	if (argc < 3 || !strcmp(argv[argc - 1], "--help")) {
+		printf("chroot [dir] [command arg arg2...]\n");
 		return 0;
 	}
 
diff --git a/coreutils/mv.c b/coreutils/mv.c
index cd3f4c2..86ef165 100644
--- a/coreutils/mv.c
+++ b/coreutils/mv.c
@@ -31,7 +31,7 @@ int move(const char *src, const char *dst) {
 }
 
 int main(const int argc, const char **argv) {
-	if (argc <= 2 || !strcmp(argv[argc - 1], "-h")) {
+	if (argc <= 2 || !strcmp(argv[argc - 1], "--help")) {
 		printf("mv [Src1 src2...] [Dst]\n");
 		return 0;
 	}
diff --git a/coreutils/rm.c b/coreutils/rm.c
index 44ac6f6..f513c5a 100644
--- a/coreutils/rm.c
+++ b/coreutils/rm.c
@@ -59,7 +59,7 @@ int rmtree(const char *path) {
 }
 
 int main(const int argc, char **argv) {
-	if (argc == 1 || !strcmp(argv[argc - 1], "-h")) {
+	if (argc == 1 || !strcmp(argv[argc - 1], "--help")) {
 		printf("rm [src1 src2...]\n");
 		return 0;
 	}
diff --git a/coreutils/sleep.c b/coreutils/sleep.c
index 96ad38f..e730feb 100644
--- a/coreutils/sleep.c
+++ b/coreutils/sleep.c
@@ -13,7 +13,7 @@ double convert(const char *num) {
 }
 
 int main(const int argc, const char **argv) {
-	if (argc == 1 || !strcmp(argv[argc - 1], "-h")) {
+	if (argc == 1 || !strcmp(argv[argc - 1], "--help")) {
 		printf("sleep [num[m - minute / h - hour / d - days]] / [inf (infinity)]\n");
 		return 0;
 	}