diff --git a/README.md b/README.md
index 112e0fb55..962c8b1a2 100644
--- a/README.md
+++ b/README.md
@@ -115,7 +115,7 @@ If you don’t already have a conda-based environment manager, install one. For
 To develop `conda-smithy`, use said environment manager and create an environment based on the included `environment.yml` file.
 
 ```sh
-$ conda env create
+$ conda env create -f environment.yml
 ```
 
 Then activate the environment, check that it works and install the dependencies: