diff --git a/include/configs/nsim.h b/include/configs/nsim.h
index d6d26c7..5bbf610 100644
--- a/include/configs/nsim.h
+++ b/include/configs/nsim.h
@@ -37,6 +37,7 @@
  */
 #define CONFIG_AUTO_COMPLETE
 #define CONFIG_SYS_MAXARGS		16
+#define CONFIG_CMDLINE_EDITING
 
 /*
  * Environment settings