diff --git a/doc/ref/srfi-modules.texi b/doc/ref/srfi-modules.texi
index 626bdb774..e25b92aeb 100644
--- a/doc/ref/srfi-modules.texi
+++ b/doc/ref/srfi-modules.texi
@@ -127,8 +127,8 @@ implementation-dependent operations, such as @code{use-modules} in
 Guile.  Thus, it is not necessary to use any module to get access to
 this form.
 
-Currently, the feature identifiers @code{guile}, @code{r5rs} and
-@code{srfi-0} are supported.  The other SRFIs are not in that list by
+Currently, the feature identifiers @code{guile}, @code{r5rs}, @code{srfi-0} and
+@code{srfi-6} are supported.  The other SRFIs are not in that list by
 default, because the SRFI modules must be explicitly used before their
 exported bindings can be used.