diff --git a/test/format-test.cc b/test/format-test.cc
index 36798b39..a98cbdd4 100644
--- a/test/format-test.cc
+++ b/test/format-test.cc
@@ -1216,9 +1216,9 @@ TEST(FormatterTest, FormatDouble) {
   EXPECT_EQ(buffer, str(Format("{0:E}") << 392.65));
   EXPECT_EQ("+0000392.6", str(Format("{0:+010.4g}") << 392.65));
   SPrintf(buffer, "%a", -42);
-  EXPECT_EQ("-0x1.5p+5", str(Format("{:a}") << -42.0));
+  EXPECT_EQ(buffer, str(Format("{:a}") << -42.0));
   SPrintf(buffer, "%A", -42);
-  EXPECT_EQ("-0X1.5P+5", str(Format("{:A}") << -42.0));
+  EXPECT_EQ(buffer, str(Format("{:A}") << -42.0));
 }
 
 TEST(FormatterTest, FormatNaN) {