--- expand.c    5 Dec 2006 11:35:28 -0000       1.73
+++ expand.c    22 Dec 2006 20:43:37 -0000
@@ -1986,7 +1986,7 @@
     conditions that compare numbers do not start with a letter. This just saves
     checking for them individually. */

-    if (!isalpha(name[0]))
+    if (!isalpha(name[0]) && yield)
       {
       num[i] = expand_string_integer(sub[i], FALSE);
       if (expand_string_message != NULL) return NULL;