diff --git a/README.md b/README.md
index 37ae5f1..eaa24de 100644
--- a/README.md
+++ b/README.md
@@ -7,7 +7,7 @@ PricklyPear matlab/neuron model
 1. Clone this repository or download and unzip on your computer
 2. Install [Neuron][neuron homepage] from their website
 3. Compile the .mod files using [nmodl][neuron nmodl]
-4. In the `pricklypear/matlab` directory, make a copy of the `pp_dir.template.txt` file and rename it to `pp_dir.txt`
+4. In the `pricklypear/matlab` directory, make a copy of the `pp_dir.template.txt` file, rename it to `pp_dir.txt` and edit the contents to reflect the location of the pricklypear directory
 
 To test your installation: