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-rw-r--r--src/diff.c4
1 files changed, 1 insertions, 3 deletions
diff --git a/src/diff.c b/src/diff.c
index 4c8afb12bd..59dc658eb7 100644
--- a/src/diff.c
+++ b/src/diff.c
@@ -3294,9 +3294,7 @@ f_diff_hlID(typval_T *argvars UNUSED, typval_T *rettv UNUSED)
int col;
if (in_vim9script()
- && ((argvars[0].v_type != VAR_STRING
- && argvars[0].v_type != VAR_NUMBER
- && check_for_string_arg(argvars, 0) == FAIL)
+ && (check_for_string_or_number_arg(argvars,0) == FAIL
|| check_for_number_arg(argvars, 1) == FAIL))
return;