diff --git a/README.md b/README.md
index 035d525d51e7766922eed620aa13c57b64ded4eb..1490f3d247ebbd40da8f9f59760dc12c4524daaa 100644
--- a/README.md
+++ b/README.md
@@ -40,6 +40,9 @@ They can have 1 or more values, and can be of multiple types :
 **Outputs** have the same properties but correspond to musical content produced by your instruments (notes, onsets, envelopes ...). They can be used to control others parameters.
 Three default outputs are automatically created by bf-pd and extracted from the audio you send to bf-instrument : pitch, onsets, loudness.
 
+**Declaration** is done through the arguments given to the bf-param and bf-output objects : 
+for example :[ bf-param instrumentName parameterName numberOfValues valuesType parameterOrder ]
+
 
 ## Performance: Making music together using bf-pd