diff --git a/src/terminal.c b/src/terminal.c
index c758e44..6c501ec 100644
--- a/src/terminal.c
+++ b/src/terminal.c
@@ -5779,11 +5779,18 @@
     void
 f_term_getline(typval_T *argvars, typval_T *rettv)
 {
-    buf_T	    *buf = term_get_buf(argvars, "term_getline()");
+    buf_T	    *buf;
     term_T	    *term;
     int		    row;
 
     rettv->v_type = VAR_STRING;
+
+    if (in_vim9script()
+	    && (check_for_buffer_arg(argvars, 0) == FAIL
+		|| check_for_lnum_arg(argvars, 1) == FAIL))
+	return;
+
+    buf = term_get_buf(argvars, "term_getline()");
     if (buf == NULL)
 	return;
     term = buf->b_term;
@@ -5858,10 +5865,17 @@
     void
 f_term_setsize(typval_T *argvars UNUSED, typval_T *rettv UNUSED)
 {
-    buf_T	*buf = term_get_buf(argvars, "term_setsize()");
+    buf_T	*buf;
     term_T	*term;
     varnumber_T rows, cols;
 
+    if (in_vim9script()
+	    && (check_for_buffer_arg(argvars, 0) == FAIL
+		|| check_for_number_arg(argvars, 1) == FAIL
+		|| check_for_number_arg(argvars, 2) == FAIL))
+	return;
+
+    buf = term_get_buf(argvars, "term_setsize()");
     if (buf == NULL)
     {
 	emsg(_("E955: Not a terminal buffer"));
@@ -5933,7 +5947,7 @@
     int		num = 0;
 
     if (in_vim9script()
-	    && (check_for_string_or_number_arg(argvars, 0) == FAIL
+	    && (check_for_buffer_arg(argvars, 0) == FAIL
 		|| check_for_opt_bool_arg(argvars, 1) == FAIL))
 	return;
 
@@ -5988,7 +6002,7 @@
     void
 f_term_scrape(typval_T *argvars, typval_T *rettv)
 {
-    buf_T	    *buf = term_get_buf(argvars, "term_scrape()");
+    buf_T	    *buf;
     VTermScreen	    *screen = NULL;
     VTermPos	    pos;
     list_T	    *l;
@@ -5998,6 +6012,13 @@
 
     if (rettv_list_alloc(rettv) == FAIL)
 	return;
+
+    if (in_vim9script()
+	    && (check_for_buffer_arg(argvars, 0) == FAIL
+		|| check_for_lnum_arg(argvars, 1) == FAIL))
+	return;
+
+    buf = term_get_buf(argvars, "term_scrape()");
     if (buf == NULL)
 	return;
     term = buf->b_term;
@@ -6104,7 +6125,7 @@
     term_T	*term;
 
     if (in_vim9script()
-	    && (check_for_string_or_number_arg(argvars, 0) == FAIL
+	    && (check_for_buffer_arg(argvars, 0) == FAIL
 		|| check_for_string_arg(argvars, 1) == FAIL))
 	return;
 
@@ -6183,7 +6204,7 @@
     term_T	*term;
 
     if (in_vim9script()
-	    && (check_for_opt_string_or_number_arg(argvars, 0) == FAIL
+	    && (check_for_opt_buffer_arg(argvars, 0) == FAIL
 		|| (argvars[0].v_type != VAR_UNKNOWN
 		    && check_for_opt_list_arg(argvars, 1) == FAIL)))
 	return;
@@ -6217,7 +6238,7 @@
     char_u	*api;
 
     if (in_vim9script()
-	    && (check_for_string_or_number_arg(argvars, 0) == FAIL
+	    && (check_for_buffer_arg(argvars, 0) == FAIL
 		|| check_for_string_arg(argvars, 1) == FAIL))
 	return;
 
@@ -6245,7 +6266,7 @@
     char_u	*cmd;
 
     if (in_vim9script()
-	    && (check_for_string_or_number_arg(argvars, 0) == FAIL
+	    && (check_for_buffer_arg(argvars, 0) == FAIL
 		|| check_for_string_arg(argvars, 1) == FAIL))
 	return;
 
@@ -6273,7 +6294,7 @@
     char_u	*how;
 
     if (in_vim9script()
-	    && (check_for_string_or_number_arg(argvars, 0) == FAIL
+	    && (check_for_buffer_arg(argvars, 0) == FAIL
 		|| check_for_string_arg(argvars, 1) == FAIL))
 	return;
 
@@ -6298,6 +6319,11 @@
     jobopt_T	opt;
     buf_T	*buf;
 
+    if (in_vim9script()
+	    && (check_for_string_or_list_arg(argvars, 0) == FAIL
+		|| check_for_opt_dict_arg(argvars, 1) == FAIL))
+	return;
+
     init_job_options(&opt);
     if (argvars[1].v_type != VAR_UNKNOWN
 	    && get_job_options(&argvars[1], &opt,
@@ -6326,7 +6352,7 @@
     buf_T	*buf;
 
     if (in_vim9script()
-	    && (check_for_string_or_number_arg(argvars, 0) == FAIL
+	    && (check_for_buffer_arg(argvars, 0) == FAIL
 		|| check_for_opt_number_arg(argvars, 1) == FAIL))
 	return;