diff --git a/include/riscv_defines.sv b/include/riscv_defines.sv
index fcd56e42..0bf1c3c6 100644
--- a/include/riscv_defines.sv
+++ b/include/riscv_defines.sv
@@ -29,7 +29,7 @@
 // no traces for synthesis, they are not synthesizable
 `ifndef SYNTHESIS
 `define TRACE_EXECUTION
-`define SIMCHECKER
+//`define SIMCHECKER
 `endif