diff --git a/README.md b/README.md
index a8cb085e14868409ddfc01e0c0d68a342a8752a1..01ca43854e2a2ef8f1897d42b46919a6fd3d51ca 100644
--- a/README.md
+++ b/README.md
@@ -23,4 +23,5 @@ The following is a guide to the code and data used for data analysis, model simu
     Raw timeseries data was processed to obtain relevant information in individualized matlab files that were
     used to paramterize the stochastic differentiation model and simulate the dynamics given the light sequence
     (included as csv files).
-    The matlab code is separated for integrated and plasmid strain.
+    The matlab code is separated for integrated and plasmid strain. 
+    Matlab code requires the signal processing toolbox.