diff --git a/clang/lib/Basic/Targets/OSTargets.h b/clang/lib/Basic/Targets/OSTargets.h
--- a/clang/lib/Basic/Targets/OSTargets.h
+++ b/clang/lib/Basic/Targets/OSTargets.h
@@ -796,7 +796,6 @@
     this->UseZeroLengthBitfieldAlignment = true;
     this->UseLeadingZeroLengthBitfield = false;
     this->ZeroLengthBitfieldBoundary = 32;
-    this->DefaultAlignForAttributeAligned = 128;
   }
 };
 
diff --git a/clang/test/CodeGen/SystemZ/zos-alignment.c b/clang/test/CodeGen/SystemZ/zos-alignment.c
--- a/clang/test/CodeGen/SystemZ/zos-alignment.c
+++ b/clang/test/CodeGen/SystemZ/zos-alignment.c
@@ -147,7 +147,7 @@
 } S10;
 // CHECK:              0 | struct s10
 // CHECK-NEXT:         0 |   unsigned int a
-// CHECK-NEXT:           | [sizeof=16, align=16]
+// CHECK-NEXT:           | [sizeof=8, align=8]
 
 struct s11 {
   char a;