diff --git a/src/eval.c b/src/eval.c
index a9f5ae6..fbf4f57 100644
--- a/src/eval.c
+++ b/src/eval.c
@@ -2083,7 +2083,8 @@
  * If inside Vim9 script, "arg" points to the end of a line (ignoring a #
  * comment) and there is a next line, return the next line (skipping blanks)
  * and set "getnext".
- * Otherwise just return "arg" unmodified and set "getnext" to FALSE.
+ * Otherwise return the next non-white at or after "arg" and set "getnext" to
+ * FALSE.
  * "arg" must point somewhere inside a line, not at the start.
  */
     char_u *
@@ -2095,7 +2096,7 @@
     if (in_vim9script()
 	    && evalarg != NULL
 	    && (evalarg->eval_cookie != NULL || evalarg->eval_cctx != NULL)
-	    && (*p == NUL || (VIM_ISWHITE(p[-1]) && vim9_comment_start(p))))
+	    && (*p == NUL || (vim9_comment_start(p) && VIM_ISWHITE(p[-1]))))
     {
 	char_u *next;