diff --git a/ChangeLog b/ChangeLog
index 37a825ef69..a05d2625b5 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2015-08-05  Mike Frysinger  <vapier@gentoo.org>
+
+	* sysdeps/unix/sysv/linux/mmap64.c: Move MMAP2_PAGE_SHIFT define
+	before first use.
+
 2015-08-05  Mike Frysinger  <vapier@gentoo.org>
 
 	* nptl/allocatestack.c (allocate_stack): Move stacktop decl down to
diff --git a/sysdeps/unix/sysv/linux/mmap64.c b/sysdeps/unix/sysv/linux/mmap64.c
index a8da641d2b..0b160b6f6b 100644
--- a/sysdeps/unix/sysv/linux/mmap64.c
+++ b/sysdeps/unix/sysv/linux/mmap64.c
@@ -25,12 +25,12 @@
 #include <sys/syscall.h>
 
 /* This is always 12, even on architectures where PAGE_SHIFT != 12.  */
+#ifndef MMAP2_PAGE_SHIFT
+# define MMAP2_PAGE_SHIFT 12
+#endif
 #if MMAP2_PAGE_SHIFT == -1
 static int page_shift;
 #else
-# ifndef MMAP2_PAGE_SHIFT
-#  define MMAP2_PAGE_SHIFT 12
-# endif
 #define page_shift MMAP2_PAGE_SHIFT
 #endif