diff --git a/docs/reference/environment_variables.rst b/docs/reference/environment_variables.rst
index 3683b1f6a8..73224047ae 100644
--- a/docs/reference/environment_variables.rst
+++ b/docs/reference/environment_variables.rst
@@ -57,7 +57,7 @@ List of MRtrix3 environment variables
 
      Set the command to parse the provided inputs and then quit
      if it is 1. This can be used in the CI of wrapping code,
-     such as the automatically generated Pydra interfaces    
+     such as the automatically generated Pydra interfaces
 
 .. envvar:: MRTRIX_PRESERVE_PHILIPS_ISO