diff --git a/ircd/db_port.cc b/ircd/db_port.cc
index 0dd0d43c4..a87eb19f2 100644
--- a/ircd/db_port.cc
+++ b/ircd/db_port.cc
@@ -24,7 +24,13 @@ static_assert
 rocksdb::port::Mutex::Mutex()
 noexcept
 {
-	memset(this, 0x0, sizeof(pthread_mutex_t));
+	static_assert
+	(
+		sizeof(mu_) >= sizeof(mu),
+		"Mutex is not fully initialized."
+	);
+
+	memset(&mu_, 0x0, sizeof(mu_));
 
 	if constexpr(RB_DEBUG_DB_PORT > 1)
 	{
@@ -125,7 +131,13 @@ static_assert
 rocksdb::port::RWMutex::RWMutex()
 noexcept
 {
-	memset(this, 0x0, sizeof(pthread_rwlock_t));
+	static_assert
+	(
+		sizeof(mu_) >= sizeof(mu),
+		"RWMutex is not fully initialized."
+	);
+
+	memset(&mu_, 0x0, sizeof(mu_));
 
 	if constexpr(RB_DEBUG_DB_PORT > 1)
 	{
@@ -252,7 +264,13 @@ static_assert
 rocksdb::port::CondVar::CondVar(Mutex *mu)
 noexcept
 {
-	memset(this, 0x0, sizeof(pthread_cond_t) + sizeof(Mutex *));
+	static_assert
+	(
+		sizeof(cv_) >= sizeof(cv),
+		"CondVar is not fully initialized."
+	);
+
+	memset(&cv_, 0x0, sizeof(cv_));
 	this->mu = mu;
 
 	if constexpr(RB_DEBUG_DB_PORT > 1)
diff --git a/ircd/db_port.h b/ircd/db_port.h
index 73f7b445f..ddba9c0f3 100644
--- a/ircd/db_port.h
+++ b/ircd/db_port.h
@@ -41,7 +41,11 @@ class rocksdb::port::Mutex
 {
 	friend class CondVar;
 
-	ctx::mutex mu;
+	union
+	{
+		ctx::mutex mu;
+		pthread_mutex_t mu_;
+	};
 
   public:
 	void Lock() noexcept;
@@ -57,8 +61,13 @@ class rocksdb::port::Mutex
 
 class rocksdb::port::CondVar
 {
+	union
+	{
+		ctx::condition_variable cv;
+		pthread_cond_t cv_;
+	};
+
 	Mutex *mu;
-	ctx::condition_variable cv;
 
   public:
 	void Wait() noexcept;
@@ -72,7 +81,11 @@ class rocksdb::port::CondVar
 
 class rocksdb::port::RWMutex
 {
-	ctx::shared_mutex mu;
+	union
+	{
+		ctx::shared_mutex mu;
+		pthread_rwlock_t mu_;
+	};
 
   public:
 	void ReadLock() noexcept;