diff --git a/prelude.f b/prelude.f
index b935b97..8c2471c 100644
--- a/prelude.f
+++ b/prelude.f
@@ -165,6 +165,10 @@ CHAR . EMIT
 
 : NIP SWAP DROP ;
 
+: HEX 16 BASE ! ;
+
+: DECIMAL 10 BASE ! ;
+
 : '
   WORD FIND DUP 0<> IF
 	>CFA