diff --git a/include/jemalloc/jemalloc_macros.h.in b/include/jemalloc/jemalloc_macros.h.in
index 673ffd9b..f1a8049d 100644
--- a/include/jemalloc/jemalloc_macros.h.in
+++ b/include/jemalloc/jemalloc_macros.h.in
@@ -11,25 +11,25 @@
 #define	JEMALLOC_VERSION_NREV @jemalloc_version_nrev@
 #define	JEMALLOC_VERSION_GID "@jemalloc_version_gid@"
 
-#  define MALLOCX_LG_ALIGN(la)	((int)(la))
-#  if LG_SIZEOF_PTR == 2
-#    define MALLOCX_ALIGN(a)	((int)(ffs((int)(a))-1))
-#  else
-#    define MALLOCX_ALIGN(a)						\
-       ((int)(((size_t)(a) < (size_t)INT_MAX) ? ffs((int)(a))-1 :	\
-       ffs((int)(((size_t)(a))>>32))+31))
-#  endif
-#  define MALLOCX_ZERO	((int)0x40)
+#define	MALLOCX_LG_ALIGN(la)	((int)(la))
+#if LG_SIZEOF_PTR == 2
+#  define MALLOCX_ALIGN(a)	((int)(ffs((int)(a))-1))
+#else
+#  define MALLOCX_ALIGN(a)						\
+     ((int)(((size_t)(a) < (size_t)INT_MAX) ? ffs((int)(a))-1 :	\
+     ffs((int)(((size_t)(a))>>32))+31))
+#endif
+#define	MALLOCX_ZERO	((int)0x40)
 /*
  * Bias tcache index bits so that 0 encodes "automatic tcache management", and 1
  * encodes MALLOCX_TCACHE_NONE.
  */
-#  define MALLOCX_TCACHE(tc)	((int)(((tc)+2) << 8))
-#  define MALLOCX_TCACHE_NONE	MALLOCX_TCACHE(-1)
+#define	MALLOCX_TCACHE(tc)	((int)(((tc)+2) << 8))
+#define	MALLOCX_TCACHE_NONE	MALLOCX_TCACHE(-1)
 /*
  * Bias arena index bits so that 0 encodes "use an automatically chosen arena".
  */
-#  define MALLOCX_ARENA(a)	((((int)(a))+1) << 20)
+#define	MALLOCX_ARENA(a)	((((int)(a))+1) << 20)
 
 #if defined(__cplusplus) && defined(JEMALLOC_USE_CXX_THROW)
 #  define JEMALLOC_CXX_THROW throw()