diff --git a/arch/blackfin/kernel/bfin_ksyms.c b/arch/blackfin/kernel/bfin_ksyms.c
index aa05e638fb7c..ed8392c117ea 100644
--- a/arch/blackfin/kernel/bfin_ksyms.c
+++ b/arch/blackfin/kernel/bfin_ksyms.c
@@ -10,6 +10,7 @@
 #include <linux/uaccess.h>
 
 #include <asm/cacheflush.h>
+#include <asm/io.h>
 
 /* Allow people to have their own Blackfin exception handler in a module */
 EXPORT_SYMBOL(bfin_return_from_exception);