diff --git a/arch/sparc/include/asm/cache.h b/arch/sparc/include/asm/cache.h
index 41f85ae4bd4ad7de07ff2fab14804ad75bac3d80..78b07009f60a9d52c8042fc1c9124fef9d6a2f16 100644
--- a/arch/sparc/include/asm/cache.h
+++ b/arch/sparc/include/asm/cache.h
@@ -7,6 +7,8 @@
 #ifndef _SPARC_CACHE_H
 #define _SPARC_CACHE_H
 
+#define ARCH_SLAB_MINALIGN	__alignof__(unsigned long long)
+
 #define L1_CACHE_SHIFT 5
 #define L1_CACHE_BYTES 32
 #define L1_CACHE_ALIGN(x) ((((x)+(L1_CACHE_BYTES-1))&~(L1_CACHE_BYTES-1)))