diff --git a/proxygen/lib/http/codec/compress/experimental/simulator/CompressionSimulator.cpp b/proxygen/lib/http/codec/compress/experimental/simulator/CompressionSimulator.cpp
index ab57213d8b..be252f8cb3 100644
--- a/proxygen/lib/http/codec/compress/experimental/simulator/CompressionSimulator.cpp
+++ b/proxygen/lib/http/codec/compress/experimental/simulator/CompressionSimulator.cpp
@@ -6,6 +6,8 @@
  * LICENSE file in the root directory of this source tree.
  */
 
+#include <folly/logging/xlog.h>
+
 #include <proxygen/lib/http/codec/compress/experimental/simulator/CompressionSimulator.h>
 #include <proxygen/lib/http/codec/compress/experimental/simulator/CompressionUtils.h>
 #include <proxygen/lib/http/codec/compress/experimental/simulator/HPACKScheme.h>
@@ -24,7 +26,7 @@ namespace {
 // This needs to be synchronized with HPACKEncoder::kAutoFlushThreshold.
 const size_t kMTU = 1400;
 
-const std::string kTestDir = getContainingDirectory(__FILE__).str();
+const std::string kTestDir = getContainingDirectory(XLOG_FILENAME).str();
 
 } // namespace
 
diff --git a/proxygen/lib/http/session/test/HTTPSessionAcceptorTest.cpp b/proxygen/lib/http/session/test/HTTPSessionAcceptorTest.cpp
index 05d674074c..0b0dccc28f 100644
--- a/proxygen/lib/http/session/test/HTTPSessionAcceptorTest.cpp
+++ b/proxygen/lib/http/session/test/HTTPSessionAcceptorTest.cpp
@@ -13,6 +13,7 @@
 #include <folly/io/async/AsyncSSLSocket.h>
 #include <folly/io/async/test/MockAsyncServerSocket.h>
 #include <folly/io/async/test/MockAsyncSocket.h>
+#include <folly/logging/xlog.h>
 #include <proxygen/lib/http/session/test/HTTPSessionMocks.h>
 #include <proxygen/lib/utils/TestUtils.h>
 
@@ -26,7 +27,7 @@ using folly::test::MockAsyncSocket;
 
 namespace {
 
-const std::string kTestDir = getContainingDirectory(__FILE__).str();
+const std::string kTestDir = getContainingDirectory(XLOG_FILENAME).str();
 
 }