diff --git a/README.md b/README.md
index 3f2ff4e..3a8f105 100644
--- a/README.md
+++ b/README.md
@@ -21,7 +21,7 @@ There are a lot of other plotters out there, but our reviews speak for themselve
 #### Setting up an AutoPlotter page
 1. Clone this repository
 2. Ensure you are on the UCSD's Tier-2 server. 
-3. Run `aplot`, passing the directory with the files (.pdfs only) that you wish to plot:
+3. Run `aplot`, passing the directory with the files (.pdf's with optional, associated .txt files) that you wish to plot:
 ```
     >> aplot <origin_directory> <optional_target>
 ```