diff --git a/it87spi.c b/it87spi.c
index 0ee7d12..4f413ba 100644
--- a/it87spi.c
+++ b/it87spi.c
@@ -23,6 +23,8 @@
  * Contains the ITE IT87* SPI specific routines
  */
 
+#if defined(__i386__) || defined(__x86_64__)
+
 #include <string.h>
 #include <stdlib.h>
 #include "flash.h"
@@ -351,3 +353,5 @@
 
 	return 0;
 }
+
+#endif