diff --git a/include/configs/nsim.h b/include/configs/nsim.h
index c086de6aa7d149a376d22790f322a0034cf8d55b..c4775e539f0db57e26748892f12baa2e87c6f3bb 100644
--- a/include/configs/nsim.h
+++ b/include/configs/nsim.h
@@ -30,7 +30,6 @@
  *
  */
 #define CONFIG_ARC_SERIAL
-#define CONFIG_ARC_UART_BASE		0xC0FC1000
 
 /*
  * Command line configuration