diff --git a/pkgs/development/interpreters/ruby/dev.nix b/pkgs/development/interpreters/ruby/dev.nix
index 62d561fbc14..dea21118b20 100644
--- a/pkgs/development/interpreters/ruby/dev.nix
+++ b/pkgs/development/interpreters/ruby/dev.nix
@@ -1,5 +1,5 @@
 /* An environment for development that bundles ruby, bundler and bundix
-   together. This avoids version conflicts where each is using a diferent
+   together. This avoids version conflicts where each is using a different
    version of each-other.
 */
 { buildEnv, ruby, bundler, bundix }: