diff --git a/include/asm-sparc/system.h b/include/asm-sparc/system.h
index 8b6d9c9c8b93..8b4e23b3bb38 100644
--- a/include/asm-sparc/system.h
+++ b/include/asm-sparc/system.h
@@ -11,6 +11,7 @@
 #include <asm/psr.h>
 #include <asm/ptrace.h>
 #include <asm/btfixup.h>
+#include <asm/smp.h>
 
 #ifndef __ASSEMBLY__