diff --git a/Logic/Propositional_logic/Boolean_algebra.md b/Logic/Propositional_logic/Boolean_algebra.md
index 8125cc6..74655a3 100644
--- a/Logic/Propositional_logic/Boolean_algebra.md
+++ b/Logic/Propositional_logic/Boolean_algebra.md
@@ -2,7 +2,7 @@
 categories:
   - Logic
   - Computer Architecture
-tags: [propositional-logic, algebra]
+tags: [propositional-logic, algebra, nand-to-tetris]
 ---
 
 # Boolean algebra