diff --git a/hw/rtl/VX_config.vh b/hw/rtl/VX_config.vh
index 74dc3080..edc3e37e 100644
--- a/hw/rtl/VX_config.vh
+++ b/hw/rtl/VX_config.vh
@@ -234,7 +234,7 @@
 
 // Size of Instruction Buffer
 `ifndef IBUF_SIZE
-`define IBUF_SIZE 4
+`define IBUF_SIZE 2
 `endif
 
 // Size of LSU Request Queue