diff --git a/include/aconfig.h.in b/include/aconfig.h.in
index 250a04b..a340901 100644
--- a/include/aconfig.h.in
+++ b/include/aconfig.h.in
@@ -12,9 +12,6 @@
 /* Define if you can safely include both <sys/time.h> and <time.h>.  */
 #undef TIME_WITH_SYS_TIME
 
-/* Define if lex declares yytext as a char * by default, not a char[].  */
-#undef YYTEXT_POINTER
-
 /* Package version */
 #undef VERSION