diff --git a/include/sdb/sdb.h b/include/sdb/sdb.h
index 614439b..2dc334b 100644
--- a/include/sdb/sdb.h
+++ b/include/sdb/sdb.h
@@ -27,7 +27,7 @@ extern "C" {
 #define SDB_MIN_KEY 1
 #define SDB_MAX_KEY 0xff
 
-#define SDB_HASH_FAST 1
+#define SDB_HASH_FAST 0
 #define SDB_INLINE_HASH 1
 
 // ftp://ftp.gnu.org/old-gnu/Manuals/gperf-2.7/html_node/gperf_17.es.html