diff --git a/spec/22/speakers.yaml b/spec/22/speakers.yaml
index 86fa8f8..d98ea4e 100644
--- a/spec/22/speakers.yaml
+++ b/spec/22/speakers.yaml
@@ -427,7 +427,7 @@
 
 - id: ondrej-vostal
   name: Ondřej Vostal
-  bio: Matematin a ekonom
+  bio: Matematik a ekonom
   orgs: |
     Zakladatel [Chainkeepers](https://www.chainkeepers.io/)
   web: