diff --git a/rtl/system/sonata_system.sv b/rtl/system/sonata_system.sv
index 69ef0e704..8846739cd 100644
--- a/rtl/system/sonata_system.sv
+++ b/rtl/system/sonata_system.sv
@@ -770,7 +770,8 @@ module sonata_system
     .HeapBase        ( tl_main_pkg::ADDR_SPACE_SRAM            ),
     .TSMapBase       ( tl_main_pkg::ADDR_SPACE_REV_TAG         ),
     .TSMapSize       ( RevTagDepth                             ),
-    .RV32B           ( ibex_pkg::RV32BFull                     ),
+    .RV32M           ( ibex_pkg::RV32MFast                     ),
+    .RV32B           ( ibex_pkg::RV32BNone                     ),
     .ICache          ( 1'b1                                    )
   ) u_top_tracing (
     .clk_i                  (clk_sys_i),