diff --git a/rtl/ibex_multdiv_fast.sv b/rtl/ibex_multdiv_fast.sv
index dcf57303..cf69f005 100644
--- a/rtl/ibex_multdiv_fast.sv
+++ b/rtl/ibex_multdiv_fast.sv
@@ -249,7 +249,7 @@ module ibex_multdiv_fast #(
       end
     end
 
-    assign unused_mult1_res_uns = mult1_res[33:32];
+    assign unused_mult1_res_uns = mult1_res_uns[33:32];
 
     // States must be knwon/valid.
     `ASSERT_KNOWN(IbexMultStateKnown, mult_state_q)