diff --git a/unittests/Support/DwarfTest.cpp b/unittests/Support/DwarfTest.cpp
index dfdf5a26a09..5352982aa13 100644
--- a/unittests/Support/DwarfTest.cpp
+++ b/unittests/Support/DwarfTest.cpp
@@ -96,13 +96,16 @@ TEST(DwarfTest, getAttributeEncoding) {
 }
 
 TEST(DwarfTest, VirtualityString) {
-  EXPECT_EQ("DW_VIRTUALITY_none", VirtualityString(DW_VIRTUALITY_none));
-  EXPECT_EQ("DW_VIRTUALITY_virtual", VirtualityString(DW_VIRTUALITY_virtual));
-  EXPECT_EQ("DW_VIRTUALITY_pure_virtual",
+  EXPECT_EQ(StringRef("DW_VIRTUALITY_none"),
+            VirtualityString(DW_VIRTUALITY_none));
+  EXPECT_EQ(StringRef("DW_VIRTUALITY_virtual"),
+            VirtualityString(DW_VIRTUALITY_virtual));
+  EXPECT_EQ(StringRef("DW_VIRTUALITY_pure_virtual"),
             VirtualityString(DW_VIRTUALITY_pure_virtual));
 
   // DW_VIRTUALITY_max should be pure virtual.
-  EXPECT_EQ("DW_VIRTUALITY_pure_virtual", VirtualityString(DW_VIRTUALITY_max));
+  EXPECT_EQ(StringRef("DW_VIRTUALITY_pure_virtual"),
+            VirtualityString(DW_VIRTUALITY_max));
 
   // Invalid numbers shouldn't be stringified.
   EXPECT_EQ(nullptr, VirtualityString(DW_VIRTUALITY_max + 1));