diff --git a/arch/sandbox/include/asm/cache.h b/arch/sandbox/include/asm/cache.h
index d28c385..ffbb984 100644
--- a/arch/sandbox/include/asm/cache.h
+++ b/arch/sandbox/include/asm/cache.h
@@ -12,7 +12,13 @@
  * the contents of stack buffers to something reasonable.  The
  * GCC macro __BIGGEST_ALIGNMENT__ is defined to be the maximum
  * required alignment for any basic type.  This seems reasonable.
+ * This is however GCC specific so if we don't have that available
+ * assume that 16 is large enough.
  */
+#ifdef __BIGGEST_ALIGNMENT__
 #define ARCH_DMA_MINALIGN	__BIGGEST_ALIGNMENT__
+#else
+#define ARCH_DMA_MINALIGN	16
+#endif
 
 #endif /* __SANDBOX_CACHE_H__ */