diff --git a/DIRECTORY.md b/DIRECTORY.md
index 8d1567465..d4a2bb485 100644
--- a/DIRECTORY.md
+++ b/DIRECTORY.md
@@ -62,7 +62,7 @@
 ## Boolean Algebra
   * [And Gate](boolean_algebra/and_gate.py)
   * [Nand Gate](boolean_algebra/nand_gate.py)
-  * [Norgate](boolean_algebra/norgate.py)
+  * [Nor Gate](boolean_algebra/nor_gate.py)
   * [Not Gate](boolean_algebra/not_gate.py)
   * [Or Gate](boolean_algebra/or_gate.py)
   * [Quine Mc Cluskey](boolean_algebra/quine_mc_cluskey.py)
diff --git a/boolean_algebra/norgate.py b/boolean_algebra/nor_gate.py
similarity index 100%
rename from boolean_algebra/norgate.py
rename to boolean_algebra/nor_gate.py