--- a/src/common/autoconfig.h.in
+++ b/src/common/autoconfig.h.in
@@ -99,9 +99,6 @@
 /* Use multiple threads for indexing */
 #undef IDX_THREADS
 
-/* Remove case and accents from terms */
-#undef RCL_INDEX_STRIPCHARS
-
 /* Define to 1 if you have the ANSI C header files. */
 #undef STDC_HEADERS