diff --git a/hbt/src/tagstack/tests/IntervalSlicerTest.cpp b/hbt/src/tagstack/tests/IntervalSlicerTest.cpp
index 95f31f73..48c12163 100644
--- a/hbt/src/tagstack/tests/IntervalSlicerTest.cpp
+++ b/hbt/src/tagstack/tests/IntervalSlicerTest.cpp
@@ -254,7 +254,7 @@ TEST(IntervalSlicer, MultipleSlicerInSequence) {
   }
 
   {
-    auto s2_exp = Slice::makeSlice(
+    [[maybe_unused]] auto s2_exp = Slice::makeSlice(
         99,
         1,
         1,
diff --git a/hbt/src/tagstack/tests/StreamTest.cpp b/hbt/src/tagstack/tests/StreamTest.cpp
index 738a89f8..5c6421ac 100644
--- a/hbt/src/tagstack/tests/StreamTest.cpp
+++ b/hbt/src/tagstack/tests/StreamTest.cpp
@@ -13,8 +13,6 @@ using namespace facebook::hbt;
 using namespace facebook::hbt::ringbuffer;
 using namespace facebook::hbt::tagstack;
 
-const auto maxTimeStamp = std::numeric_limits<facebook::hbt::TimeStamp>::max();
-
 struct MockRingBufferExtraData {};
 
 using TRingBuffer = RingBuffer<MockRingBufferExtraData>;