diff --git a/pkgs/development/lisp-modules/nix-cl.nix b/pkgs/development/lisp-modules/nix-cl.nix
index d1a70bf5c8e3..1716862a602d 100644
--- a/pkgs/development/lisp-modules/nix-cl.nix
+++ b/pkgs/development/lisp-modules/nix-cl.nix
@@ -112,7 +112,7 @@ let
       # Derivation containing the CL implementation package
       pkg,
 
-      # Name of the Lisp exectable
+      # Name of the Lisp executable
       program ? pkg.pname,
 
       # General flags to the Lisp executable
@@ -133,7 +133,7 @@ let
       # installPhase. This prevents asdf from referring to uncompiled
       # systems on run time.
       #
-      # Also useful when the pname is differrent than the system name,
+      # Also useful when the pname is different than the system name,
       # such as when using reverse domain naming.
       systems ? [ pname ],