diff --git a/part-2-reverse-engineering-source-code-of-the-biontech-pfizer-vaccine.md b/part-2-reverse-engineering-source-code-of-the-biontech-pfizer-vaccine.md
index dae18e1..8f20584 100644
--- a/part-2-reverse-engineering-source-code-of-the-biontech-pfizer-vaccine.md
+++ b/part-2-reverse-engineering-source-code-of-the-biontech-pfizer-vaccine.md
@@ -232,7 +232,7 @@ This implements a simple strategy that works like this:
 
 Or in `golang`:
 
-```
+```go
 // base case, don't do anything
 our = vir