diff --git a/umac.h b/umac.h
index fcd3ad18d45eed8e635f0b0aaad663eac9a596d6..37ac96a2b8dadb9fb77d94aa1b04a90757d5e594 100644
--- a/umac.h
+++ b/umac.h
@@ -88,8 +88,8 @@ extern "C" {
 
   /* Buffering */ 
 #define _UMAC_BUFFER					\
-  /* Complete blocks processed */			\
   unsigned index;					\
+  /* Complete blocks processed */			\
   uint64_t count;					\
   uint8_t block[UMAC_BLOCK_SIZE]