diff --git a/oop/goops/dispatch.scm b/oop/goops/dispatch.scm
index d766b637a..cd1c7e698 100644
--- a/oop/goops/dispatch.scm
+++ b/oop/goops/dispatch.scm
@@ -61,7 +61,7 @@
 ;;;
 
 (define hashsets 8)
-(define hashset-index 7)
+(define hashset-index 6)
 
 (define hash-threshold 3)
 (define initial-hash-size 4) ;must be a power of 2 and >= hash-threshold