diff --git a/docs/enzymes.rst b/docs/enzymes.rst
index 343d6f4581cd1cae25457dd3340a3e571f0d4b13..9b91a650fa04123dd2e031202c31fd96adcf2466 100644
--- a/docs/enzymes.rst
+++ b/docs/enzymes.rst
@@ -913,7 +913,7 @@ Elastase preferentially cleaves after A, V, S, G, L, or I (`P1`).
 
 cleaving rule:
 
-* ``(A or V or S or G or L or or I,)``
+* ``(A or V or S or G or L or I,)``
 
 More information: https://france.promega.com/products/mass-spectrometry/proteases-and-surfactants/elastase/?catNum=V1891