diff --git a/content/pages/posts/algebraic-types.md b/content/pages/posts/algebraic-types.md
index 9598838..5e38621 100644
--- a/content/pages/posts/algebraic-types.md
+++ b/content/pages/posts/algebraic-types.md
@@ -79,7 +79,7 @@ Another example is modeling errors. In Go, when a function can return an error,
 |Value 1|Value 2|Assumed|
 |-|-|-|
 |`present`|`null`|yes|
-|`null` | `null` |yes|
+|`null` | `present` |yes|
 |`present`|`present`|no|
 |`null`|`null`|no|
 
@@ -244,4 +244,4 @@ Thanks [Uğur](https://www.rugu.dev/) for his detailed and valuable feedback on
 [^3]: [Cognitive load is what matters](https://minds.md/zakirullin/cognitive)
 [^4]: [Visitor Pattern](https://en.wikipedia.org/wiki/Visitor_pattern)
 [^5]: [No Silver bullet](https://www.cs.unc.edu/techreports/86-020.pdf)
-[^6]: [Visitor is a sum type](https://blog.ploeh.dk/2018/06/25/visitor-as-a-sum-type/)
\ No newline at end of file
+[^6]: [Visitor is a sum type](https://blog.ploeh.dk/2018/06/25/visitor-as-a-sum-type/)