diff --git a/content/oop_macro.md b/content/oop_macro.md
index ccf5f1f..0566d3b 100644
--- a/content/oop_macro.md
+++ b/content/oop_macro.md
@@ -68,7 +68,7 @@ macro class*(head: expr, body: stmt): stmt {.immediate.} =
     baseName = head[2]
 
   else:
-    quit "Invalide node: " & head.lispRepr
+    quit "Invalid node: " & head.lispRepr
 
   # echo treeRepr(body)
   # --------------------
@@ -227,4 +227,4 @@ woof
 70
 meow
 10
-```
\ No newline at end of file
+```