1 files changed, 1 insertions, 1 deletions
diff --git a/fb/fb.h b/fb/fb.h
index fc8dc0229..f90a3499e 100644
--- a/fb/fb.h
+++ b/fb/fb.h
@@ -105,7 +105,7 @@ typedef unsigned __int64    FbBits;
       defined(ia64) || defined(__ia64__) || \
       defined(__sparc64__) || \
       defined(__s390x__) || \
-      defined(AMD64) || defined (__AMD64__) || \
+      defined(amd64) || defined (__amd64__) || \
       (defined(sgi) && (_MIPS_SZLONG == 64))
 typedef unsigned long	    FbBits;
 #  else