diff --git a/include/configs/chromebox_panther.h b/include/configs/chromebox_panther.h
index 00fe26da29..d5b33902cc 100644
--- a/include/configs/chromebox_panther.h
+++ b/include/configs/chromebox_panther.h
@@ -11,7 +11,5 @@
 #include <configs/x86-chromebook.h>
 
 #define CONFIG_RTL8169
-/* Avoid a warning in the Realtek Ethernet driver */
-#define CONFIG_SYS_CACHELINE_SIZE 16
 
 #endif	/* __CONFIG_H */