diff --git a/src/gui_w32.c b/src/gui_w32.c
index c7a7b60..5ff6192 100644
--- a/src/gui_w32.c
+++ b/src/gui_w32.c
@@ -3216,7 +3216,7 @@
 	    if (l == 1 && vim_iswhite(*pend)
 					&& textWidth > maxDialogWidth * 3 / 4)
 		last_white = pend;
-	    textWidth += GetTextWidth(hdc, pend, l);
+	    textWidth += GetTextWidthEnc(hdc, pend, l);
 	    if (textWidth >= maxDialogWidth)
 	    {
 		/* Line will wrap. */