1 files changed, 5 insertions, 5 deletions
diff --git a/src/ops.c b/src/ops.c
index 4946bf2af2..c92dc6b921 100644
--- a/src/ops.c
+++ b/src/ops.c
@@ -2032,16 +2032,16 @@ int swapchar(int op_type, pos_T *pos)
   if (enc_dbcs != 0 && c >= 0x100)      /* No lower/uppercase letter */
     return FALSE;
   nc = c;
-  if (MB_ISLOWER(c)) {
+  if (vim_islower(c)) {
     if (op_type == OP_ROT13)
       nc = ROT13(c, 'a');
     else if (op_type != OP_LOWER)
-      nc = MB_TOUPPER(c);
-  } else if (MB_ISUPPER(c)) {
+      nc = vim_toupper(c);
+  } else if (vim_isupper(c)) {
     if (op_type == OP_ROT13)
       nc = ROT13(c, 'A');
     else if (op_type != OP_UPPER)
-      nc = MB_TOLOWER(c);
+      nc = vim_tolower(c);
   }
   if (nc != c) {
     if (enc_utf8 && (c >= 0x80 || nc >= 0x80)) {
@@ -3289,7 +3289,7 @@ void ex_display(exarg_T *eap)
     } else
       yb = &(y_regs[i]);
 
-    if (name == MB_TOLOWER(redir_reg)
+    if (name == vim_tolower(redir_reg)
         || (redir_reg == '"' && yb == y_previous))
       continue;             /* do not list register being written to, the
                              * pointer can be freed */