diff --git a/unittests/Support/raw_ostream_test.cpp b/unittests/Support/raw_ostream_test.cpp
index ff986025b2c..ed6ddabe463 100644
--- a/unittests/Support/raw_ostream_test.cpp
+++ b/unittests/Support/raw_ostream_test.cpp
@@ -70,8 +70,8 @@ TEST(raw_ostreamTest, Types_Buffered) {
 
   // void*
   EXPECT_EQ("0x0", printToString((void*) nullptr));
-  EXPECT_EQ("0xbeef", printToString((void*) 0xbeef));
-  EXPECT_EQ("0xdeadbeef", printToString((void*) 0xdeadbeef));
+  EXPECT_EQ("0xbeef", printToString((void*) 0xbeefLL));
+  EXPECT_EQ("0xdeadbeef", printToString((void*) 0xdeadbeefLL));
 
   // Min and max.
   EXPECT_EQ("18446744073709551615", printToString(UINT64_MAX));
@@ -101,8 +101,8 @@ TEST(raw_ostreamTest, Types_Unbuffered) {
 
   // void*
   EXPECT_EQ("0x0", printToStringUnbuffered((void*) nullptr));
-  EXPECT_EQ("0xbeef", printToStringUnbuffered((void*) 0xbeef));
-  EXPECT_EQ("0xdeadbeef", printToStringUnbuffered((void*) 0xdeadbeef));
+  EXPECT_EQ("0xbeef", printToStringUnbuffered((void*) 0xbeefLL));
+  EXPECT_EQ("0xdeadbeef", printToStringUnbuffered((void*) 0xdeadbeefLL));
 
   // Min and max.
   EXPECT_EQ("18446744073709551615", printToStringUnbuffered(UINT64_MAX));