diff --git a/include/sway/commands.h b/include/sway/commands.h
index 791b37dc..6606775a 100644
--- a/include/sway/commands.h
+++ b/include/sway/commands.h
@@ -40,7 +40,7 @@ struct cmd_results {
 
 enum expected_args {
 	EXPECTED_AT_LEAST,
-	EXPECTED_LESS_THAN,
+	EXPECTED_AT_MOST,
 	EXPECTED_EQUAL_TO
 };
 
diff --git a/sway/commands.c b/sway/commands.c
index 6a5eb3dd..37c7169a 100644
--- a/sway/commands.c
+++ b/sway/commands.c
@@ -25,9 +25,9 @@ struct cmd_results *checkarg(int argc, const char *name, enum expected_args type
 			error_name = "at least ";
 		}
 		break;
-	case EXPECTED_LESS_THAN:
-		if (argc >= val) {
-			error_name = "less than ";
+	case EXPECTED_AT_MOST:
+		if (argc > val) {
+			error_name = "at most ";
 		}
 		break;
 	case EXPECTED_EQUAL_TO:
diff --git a/sway/commands/bar/hidden_state.c b/sway/commands/bar/hidden_state.c
index 28adf6c7..5be6c2dc 100644
--- a/sway/commands/bar/hidden_state.c
+++ b/sway/commands/bar/hidden_state.c
@@ -40,7 +40,7 @@ struct cmd_results *bar_cmd_hidden_state(int argc, char **argv) {
 	if ((error = checkarg(argc, "hidden_state", EXPECTED_AT_LEAST, 1))) {
 		return error;
 	}
-	if ((error = checkarg(argc, "hidden_state", EXPECTED_LESS_THAN, 3))) {
+	if ((error = checkarg(argc, "hidden_state", EXPECTED_AT_MOST, 2))) {
 		return error;
 	}
 	if (config->reading && argc > 1) {
diff --git a/sway/commands/bar/mode.c b/sway/commands/bar/mode.c
index dbdd3897..2cba785e 100644
--- a/sway/commands/bar/mode.c
+++ b/sway/commands/bar/mode.c
@@ -41,7 +41,7 @@ struct cmd_results *bar_cmd_mode(int argc, char **argv) {
 	if ((error = checkarg(argc, "mode", EXPECTED_AT_LEAST, 1))) {
 		return error;
 	}
-	if ((error = checkarg(argc, "mode", EXPECTED_LESS_THAN, 3))) {
+	if ((error = checkarg(argc, "mode", EXPECTED_AT_MOST, 2))) {
 		return error;
 	}
 	if (config->reading && argc > 1) {
diff --git a/sway/commands/fullscreen.c b/sway/commands/fullscreen.c
index 22d747b9..0204a73c 100644
--- a/sway/commands/fullscreen.c
+++ b/sway/commands/fullscreen.c
@@ -9,7 +9,7 @@
 
 struct cmd_results *cmd_fullscreen(int argc, char **argv) {
 	struct cmd_results *error = NULL;
-	if ((error = checkarg(argc, "fullscreen", EXPECTED_LESS_THAN, 2))) {
+	if ((error = checkarg(argc, "fullscreen", EXPECTED_AT_MOST, 1))) {
 		return error;
 	}
 	struct sway_node *node = config->handler_context.node;