diff --git a/doc/03_reference/icache.rst b/doc/03_reference/icache.rst
index b47b53f8..1876986e 100644
--- a/doc/03_reference/icache.rst
+++ b/doc/03_reference/icache.rst
@@ -96,7 +96,7 @@ Indicative RAM sizes for common configurations are given in the table below:
 If ICacheScramble parameter is enabled, all RAM primitives are replaced with scrambling RAM primitive.
 For more information about how scrambling works internally (see :file:`vendor/lowrisc_ip/ip/prim/doc/prim_ram_1p_scr.md`).
 Interface for receiving scrambling key follows req / ack protocol.
-Ibex first requests a new ephemeral key by asserting the request (`scramble_req_o) and when a fresh valid key is indicated by `scramble_key_valid_i, it deasserts the request. 
+Ibex first requests a new ephemeral key by asserting the request (``scramble_req_o``) and when a fresh valid key is indicated by ``scramble_key_valid_i``, it deasserts the request. 
 Note that in current implementation, it is assumed req/ack protocol is synchronized before arriving to Ibex top level.
 
 Sub Unit Description