diff --git a/wpiutil/src/test/native/cpp/raw_uv_stream_test.cpp b/wpiutil/src/test/native/cpp/raw_uv_stream_test.cpp
index f45c9d20df..985fb8bcc9 100644
--- a/wpiutil/src/test/native/cpp/raw_uv_stream_test.cpp
+++ b/wpiutil/src/test/native/cpp/raw_uv_stream_test.cpp
@@ -19,6 +19,10 @@ TEST(RawUvStreamTest, BasicWrite) {
   ASSERT_EQ(bufs[0].base[1], '2');
   ASSERT_EQ(bufs[0].base[2], '3');
   ASSERT_EQ(bufs[0].base[3], '4');
+
+  for (auto& buf : bufs) {
+    buf.Deallocate();
+  }
 }
 
 TEST(RawUvStreamTest, BoundaryWrite) {
@@ -31,6 +35,10 @@ TEST(RawUvStreamTest, BoundaryWrite) {
   ASSERT_EQ(bufs.size(), 1u);
   os << "56";
   ASSERT_EQ(bufs.size(), 2u);
+
+  for (auto& buf : bufs) {
+    buf.Deallocate();
+  }
 }
 
 TEST(RawUvStreamTest, LargeWrite) {
@@ -40,6 +48,10 @@ TEST(RawUvStreamTest, LargeWrite) {
   ASSERT_EQ(bufs.size(), 2u);
   ASSERT_EQ(bufs[1].len, 2u);
   ASSERT_EQ(bufs[1].base[0], '5');
+
+  for (auto& buf : bufs) {
+    buf.Deallocate();
+  }
 }
 
 TEST(RawUvStreamTest, PrevDataWrite) {
@@ -50,6 +62,10 @@ TEST(RawUvStreamTest, PrevDataWrite) {
   ASSERT_EQ(bufs.size(), 2u);
   ASSERT_EQ(bufs[0].len, 1024u);
   ASSERT_EQ(bufs[1].len, 4u);
+
+  for (auto& buf : bufs) {
+    buf.Deallocate();
+  }
 }
 
 }  // namespace wpi
diff --git a/wpiutil/src/test/native/cpp/uv/UvBufferTest.cpp b/wpiutil/src/test/native/cpp/uv/UvBufferTest.cpp
index 4faeaf8b7f..a26ed1ec40 100644
--- a/wpiutil/src/test/native/cpp/uv/UvBufferTest.cpp
+++ b/wpiutil/src/test/native/cpp/uv/UvBufferTest.cpp
@@ -12,12 +12,14 @@ TEST(UvSimpleBufferPool, ConstructDefault) {
   SimpleBufferPool<> pool;
   auto buf1 = pool.Allocate();
   ASSERT_EQ(buf1.len, 4096u);  // NOLINT
+  pool.Release({&buf1, 1});
 }
 
 TEST(UvSimpleBufferPool, ConstructSize) {
   SimpleBufferPool<4> pool{8192};
   auto buf1 = pool.Allocate();
   ASSERT_EQ(buf1.len, 8192u);  // NOLINT
+  pool.Release({&buf1, 1});
 }
 
 TEST(UvSimpleBufferPool, ReleaseReuse) {
@@ -31,6 +33,7 @@ TEST(UvSimpleBufferPool, ReleaseReuse) {
   auto buf2 = pool.Allocate();
   ASSERT_EQ(buf1copy.base, buf2.base);
   ASSERT_EQ(buf2.len, origSize);
+  pool.Release({&buf2, 1});
 }
 
 TEST(UvSimpleBufferPool, ClearRemaining) {