diff --git a/src/screen.c b/src/screen.c
index ca7b658..e0d4af8 100644
--- a/src/screen.c
+++ b/src/screen.c
@@ -3463,7 +3463,7 @@
     {
 	/* For checking first word with a capital skip white space. */
 	if (cap_col == 0)
-	    cap_col = (int)(skipwhite(line) - line);
+	    cap_col = getwhitecols(line);
 
 	/* To be able to spell-check over line boundaries copy the end of the
 	 * current line into nextline[].  Above the start of the next line was