diff --git a/collects/rackunit/private/base.rkt b/collects/rackunit/private/base.rkt
index b1b315df5a..7a0e2ab480 100644
--- a/collects/rackunit/private/base.rkt
+++ b/collects/rackunit/private/base.rkt
@@ -11,7 +11,7 @@
 ;; struct exn:test exn : ()
 ;;
 ;; The exception throw by test failures
-(define-struct (exn:test exn) ())
+(define-struct (exn:test exn:fail) ())
 ;; struct (exn:test:check struct:exn:test) : (list-of check-info)
 ;;
 ;; The exception thrown to indicate a check has failed
diff --git a/collects/rackunit/scribblings/internals.scrbl b/collects/rackunit/scribblings/internals.scrbl
index 4a22aeb102..2d901a97c9 100644
--- a/collects/rackunit/scribblings/internals.scrbl
+++ b/collects/rackunit/scribblings/internals.scrbl
@@ -81,7 +81,7 @@ custom UIs can be created.
 
 @subsection{Result Types}
 
-@defstruct[(exn:test exn) ()]{
+@defstruct[(exn:test exn:fail) ()]{
 
 The base structure for RackUnit exceptions.  You should
 never catch instances of this type, only the subtypes