diff --git a/journal/2021-04-09.md b/journal/2021-04-09.md
index 85adaa640..d07f11120 100644
--- a/journal/2021-04-09.md
+++ b/journal/2021-04-09.md
@@ -13,4 +13,4 @@
 - [[sam harris]]
 - [[eric weinstein]]
   - [[joe rogan]]
-  - [[planet hof]]
\ No newline at end of file
+  - [[planet hopf]]
\ No newline at end of file
diff --git a/planet-hof.md b/planet-hof.md
index f05abe851..20e7bb4a1 100644
--- a/planet-hof.md
+++ b/planet-hof.md
@@ -1,4 +1,4 @@
 # planet hof
 
-- [[go]] http://www.math.toronto.edu/~drorbn/Gallery/KnottedObjects/PlanetHopf/
+- [[mondegreen]] of [[planet hopf]]
 
diff --git a/planet-hopf.md b/planet-hopf.md
new file mode 100644
index 000000000..edba34e3a
--- /dev/null
+++ b/planet-hopf.md
@@ -0,0 +1,6 @@
+# planet hopf
+
+- [[go]] http://www.math.toronto.edu/~drorbn/Gallery/KnottedObjects/PlanetHopf/
+- [[eric weinstein]]
+  - with [[joe rogan]]
+