diff --git a/src/nvim/eval/funcs.c b/src/nvim/eval/funcs.c
index 0934864040..a1dcfb4fae 100644
--- a/src/nvim/eval/funcs.c
+++ b/src/nvim/eval/funcs.c
@@ -2380,9 +2380,9 @@ static void f_getreg(typval_T *argvars, typval_T *rettv, EvalFuncData fptr)
 
   if (argvars[0].v_type != VAR_UNKNOWN && argvars[1].v_type != VAR_UNKNOWN) {
     bool error = false;
-    arg2 = (int)tv_get_number_chk(&argvars[1], &error);
+    arg2 = (int)tv_get_bool_chk(&argvars[1], &error);
     if (!error && argvars[2].v_type != VAR_UNKNOWN) {
-      return_list = (bool)tv_get_number_chk(&argvars[2], &error);
+      return_list = (bool)tv_get_bool_chk(&argvars[2], &error);
     }
     if (error) {
       return;