diff --git a/libcxx/test/utilities/meta/meta.unary.prop.query/alignment_of.pass.cpp b/libcxx/test/utilities/meta/meta.unary.prop.query/alignment_of.pass.cpp
index 9ee89c29cf0f..01a2f65c92aa 100644
--- a/libcxx/test/utilities/meta/meta.unary.prop.query/alignment_of.pass.cpp
+++ b/libcxx/test/utilities/meta/meta.unary.prop.query/alignment_of.pass.cpp
@@ -38,6 +38,10 @@ int main()
     test_alignment_of<char[3], 1>();
     test_alignment_of<int, 4>();
     test_alignment_of<double, 8>();
+#if (defined(__ppc__) && !defined(__ppc64__))
+    test_alignment_of<bool, 4>();	// 32-bit PPC has four byte bool
+#else
     test_alignment_of<bool, 1>();
+#endif
     test_alignment_of<unsigned, 4>();
 }