1 files changed, 1 insertions, 1 deletions
diff --git a/src/nvim/eval.c b/src/nvim/eval.c
index cb46e26f82..ba78fb836b 100644
--- a/src/nvim/eval.c
+++ b/src/nvim/eval.c
@@ -6421,7 +6421,7 @@ pos_T *var2fpos(const typval_T *const tv, const bool dollar_lnum, int *const ret
     }
   } else if (name[0] == '\'') {
     // mark
-    int mname = (uint8_t)name[1];
+    int mname = utf_ptr2char(name + 1);
     const fmark_T *const fm = mark_get(curbuf, curwin, NULL, kMarkAll, mname);
     if (fm == NULL || fm->mark.lnum <= 0) {
       return NULL;