diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index ed398608392a9c8336c3b88117e65979204662cc..735d1097cd91ed28e63b28400857117590a6408b 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,8 @@
+2012-11-01  David Edelsohn  <dje.gcc@gmail.com>
+
+	* gfortran.dg/default_format_1.f90: XFAIL on AIX.
+	* gfortran.dg/default_format_denormal_1.f90: Same.
+
 2012-11-01  Marc Glisse  <marc.glisse@inria.fr>
 
 	PR middle-end/55001
diff --git a/gcc/testsuite/gfortran.dg/default_format_1.f90 b/gcc/testsuite/gfortran.dg/default_format_1.f90
index e439f9bb6d0f943eabfeffeb2b32280bee2e7909..65307bb47196230cd16ddc88757f88668e051d2b 100644
--- a/gcc/testsuite/gfortran.dg/default_format_1.f90
+++ b/gcc/testsuite/gfortran.dg/default_format_1.f90
@@ -1,4 +1,4 @@
-! { dg-do run { xfail spu-*-*  } }
+! { dg-do run { xfail spu-*-* powerpc-ibm-aix* } }
 ! Test XFAILed on Darwin because the system's printf() lacks
 ! proper support for denormals.
 !
diff --git a/gcc/testsuite/gfortran.dg/default_format_denormal_1.f90 b/gcc/testsuite/gfortran.dg/default_format_denormal_1.f90
index 743a8949869241ea6ed712feb02993d190245614..d74daacdd3e80812438948c98db6d119cc528a43 100644
--- a/gcc/testsuite/gfortran.dg/default_format_denormal_1.f90
+++ b/gcc/testsuite/gfortran.dg/default_format_denormal_1.f90
@@ -1,4 +1,4 @@
-! { dg-do run { xfail *-*-darwin[89]* *-*-cygwin* spu-*-* } }
+! { dg-do run { xfail *-*-darwin[89]* *-*-cygwin* spu-*-* powerpc-ibm-aix* } }
 ! Test XFAILed on these platforms because the system's printf() lacks
 ! proper support for denormals.
 !