--- a/lzfP.h
+++ b/lzfP.h
@@ -79,7 +79,11 @@
  * Unconditionally aligning does not cost very much, so do it if unsure
  */
 #ifndef STRICT_ALIGN
-# define STRICT_ALIGN !(defined(__i386) || defined (__amd64))
+# if !(defined(__i386) || defined (__amd64))
+#   define STRICT_ALIGN 1
+# else
+#   define STRICT_ALIGN 0
+# endif
 #endif
 
 /*