diff --git a/docs/CodeGenerator.rst b/docs/CodeGenerator.rst
index 5a9190d61cd..5736e4378d7 100644
--- a/docs/CodeGenerator.rst
+++ b/docs/CodeGenerator.rst
@@ -1683,7 +1683,7 @@ ones supported by the matcher), through a Requires clause:
   def : MnemonicAlias<"pushf", "pushfq">, Requires<[In64BitMode]>;
   def : MnemonicAlias<"pushf", "pushfl">, Requires<[In32BitMode]>;
 
-In this example, the mnemonic gets mapped into different a new one depending on
+In this example, the mnemonic gets mapped into a different one depending on
 the current instruction set.
 
 Instruction Aliases