diff --git a/journal/2021-01-23.md b/journal/2021-01-23.md
index cb1053df6..a66cc8c1a 100644
--- a/journal/2021-01-23.md
+++ b/journal/2021-01-23.md
@@ -9,7 +9,7 @@
 - [[walk]]
 - [[robert axelrod]]
   - [[prisoner's dilemma]]
-  - [[sharpies]]
+  - [[sharpie]]
 
 [//begin]: # "Autogenerated link references for markdown compatibility"
 [agora clients]: ../agora-clients "Agora Clients"
diff --git a/sharpie.md b/sharpie.md
new file mode 100644
index 000000000..a289b0e44
--- /dev/null
+++ b/sharpie.md
@@ -0,0 +1,11 @@
+# Sharpie
+
+- [[pull]] [[sharpies]]
+- A person who is [[selfish]], potentially [[malicious]].
+- A [[defector]] in [[game theory]].
+
+
+[//begin]: # "Autogenerated link references for markdown compatibility"
+[pull]: pull "Pull"
+[sharpies]: sharpies "Sharpies"
+[//end]: # "Autogenerated link references"
\ No newline at end of file
diff --git a/sharpies.md b/sharpies.md
index b0cd6e9d7..77705ac62 100644
--- a/sharpies.md
+++ b/sharpies.md
@@ -1,5 +1,9 @@
 # Sharpies
 
-- A person who is [[selfish]], potentially [[malicious]].
-- A [[defector]] in [[game theory]].
+- [[pull]] [[sharpie]]
 
+
+[//begin]: # "Autogenerated link references for markdown compatibility"
+[pull]: pull "Pull"
+[sharpie]: sharpie "Sharpie"
+[//end]: # "Autogenerated link references"
\ No newline at end of file