diff --git a/17.SOLID.md b/17.SOLID.md
index 34754d1..30f0a97 100644
--- a/17.SOLID.md
+++ b/17.SOLID.md
@@ -378,7 +378,7 @@ class FaxMachine:
     def fax_document(self, document):
         pass
 
-# Yes! That's where multiple inheritacne comes in use
+# Yes! That's where multiple inheritance comes in use
 class AllInOneMachine(Printer, Scanner, FaxMachine):
     def print_document(self, document):
         # Print the document