diff --git a/package.lisp b/package.lisp
index c2141c7..55f6030 100644
--- a/package.lisp
+++ b/package.lisp
@@ -316,6 +316,8 @@
            #:CIRCLE
            #:INTERESTING-FACES
            #:GMSM-COCYCLE
+           #:HOPF-FIBRATION
+           #:HOPF-FIBRATION-SINTR
            #:K-Z
            #:K-Z-1
            #:K-Z-1-CMPR