diff --git a/libgomp/ChangeLog b/libgomp/ChangeLog
index 2dab2166d30..2a5d3aeee76 100644
--- a/libgomp/ChangeLog
+++ b/libgomp/ChangeLog
@@ -1,3 +1,8 @@
+2010-01-04  H.J. Lu  <hongjiu.lu@intel.com>
+
+	PR libgomp/42602
+	* libgomp.fortran/recursion1.f90 (sub): Make 's' atomic.
+
 2010-01-03  Richard Guenther  <rguenther@suse.de>
 
 	* testsuite/libgomp.fortran/recursion1.f90: New testcase.
diff --git a/libgomp/testsuite/libgomp.fortran/recursion1.f90 b/libgomp/testsuite/libgomp.fortran/recursion1.f90
index 0b7b2715fdd..35cb8786e09 100644
--- a/libgomp/testsuite/libgomp.fortran/recursion1.f90
+++ b/libgomp/testsuite/libgomp.fortran/recursion1.f90
@@ -20,6 +20,7 @@ contains
 
   subroutine sub (n)
     integer :: n
+!$omp atomic
     s = s + n
     print '(A,i3)',"loop =",n
   end subroutine