diff --git a/README.md b/README.md
index 7b45cb4098ef3af0f76a8072e2d47765965164e5..0b4d7d6f26c87c646babccde5b85f20370ba98fb 100644
--- a/README.md
+++ b/README.md
@@ -15,7 +15,7 @@ The FE models (input files) are compatible with the nonlinear FE code [Metafor](
 ## How to run the code (command line)?
 
 ```
-fossils.exe [-k nthreads] [--nogui] <path_to_input_file.py>
+fossils.exe [-k nthreads] [--nogui] [--post] <path_to_input_file.py>
 ```
 
 ## References