diff --git a/mozilla/nsprpub/pr/src/md/unix/aix.c b/mozilla/nsprpub/pr/src/md/unix/aix.c
index 544b2584cdc..879c6adcd83 100644
--- a/mozilla/nsprpub/pr/src/md/unix/aix.c
+++ b/mozilla/nsprpub/pr/src/md/unix/aix.c
@@ -26,7 +26,6 @@
 
 #ifndef AIX4_1
 
-#include <sys/atomic_op.h>
 #include <sys/select.h>
 #include <sys/poll.h>
 #include <dlfcn.h>
@@ -35,18 +34,6 @@ static void *aix_handle = NULL;
 static int (*aix_select_fcn)() = NULL;
 static int (*aix_poll_fcn)() = NULL;
 
-PRInt32 _AIX_AtomicSet(PRInt32 *val, PRInt32 newval)
-{
-    PRIntn oldval;
-    boolean_t stored;
-    oldval = fetch_and_add((atomic_p)val, 0);
-    do
-    {
-        stored = compare_and_swap((atomic_p)val, &oldval, newval);
-    } while (!stored);
-    return oldval;
-}  /* _AIX_AtomicSet */
-
 int _MD_SELECT(int width, fd_set *r, fd_set *w, fd_set *e, struct timeval *t)
 {
     int rv;
@@ -106,6 +93,20 @@ void _pr_aix_dummy()
 
 #endif /* !AIX4_1 */
 
+#include <sys/atomic_op.h>
+
+PRInt32 _AIX_AtomicSet(PRInt32 *val, PRInt32 newval)
+{
+    PRIntn oldval;
+    boolean_t stored;
+    oldval = fetch_and_add((atomic_p)val, 0);
+    do
+    {
+        stored = compare_and_swap((atomic_p)val, &oldval, newval);
+    } while (!stored);
+    return oldval;
+}  /* _AIX_AtomicSet */
+
 #if !defined(PTHREADS_USER)
 
 #ifdef _PR_PTHREADS