diff --git a/lib/include/srslte/common/logger.h b/lib/include/srslte/common/logger.h
index 6e1d101e6..b79a8617f 100644
--- a/lib/include/srslte/common/logger.h
+++ b/lib/include/srslte/common/logger.h
@@ -40,6 +40,7 @@ public:
   const static uint32_t preallocated_log_str_size = 1024;
 
   logger() : pool(16 * 1024) {}
+  virtual ~logger() = default;
 
   class log_str
   {
diff --git a/lib/include/srslte/common/threads.h b/lib/include/srslte/common/threads.h
index f07c41244..a5bd52c37 100644
--- a/lib/include/srslte/common/threads.h
+++ b/lib/include/srslte/common/threads.h
@@ -47,7 +47,6 @@ void threads_print_self();
 #include <string>
 
 namespace srslte {
-;
 
 class thread
 {
@@ -64,6 +63,8 @@ public:
     other.name    = "";
   }
 
+  virtual ~thread() = default;
+
   thread& operator=(const thread&) = delete;
 
   thread& operator=(thread&&) noexcept = delete;
diff --git a/srsenb/hdr/phy/prach_worker.h b/srsenb/hdr/phy/prach_worker.h
index 055586cea..1e0d2a848 100644
--- a/srsenb/hdr/phy/prach_worker.h
+++ b/srsenb/hdr/phy/prach_worker.h
@@ -34,7 +34,6 @@ class prach_worker : srslte::thread
 {
 public:
   prach_worker(uint32_t cc_idx_) : buffer_pool(8), thread("PRACH_WORKER") { cc_idx = cc_idx_; }
-  ~prach_worker();
 
   int  init(const srslte_cell_t&      cell_,
             const srslte_prach_cfg_t& prach_cfg_,
diff --git a/srsenb/src/phy/prach_worker.cc b/srsenb/src/phy/prach_worker.cc
index e8b1e5e50..4fa4404f4 100644
--- a/srsenb/src/phy/prach_worker.cc
+++ b/srsenb/src/phy/prach_worker.cc
@@ -24,8 +24,6 @@
 
 namespace srsenb {
 
-prach_worker::~prach_worker() = default;
-
 int prach_worker::init(const srslte_cell_t&      cell_,
                        const srslte_prach_cfg_t& prach_cfg_,
                        stack_interface_phy_lte*  stack_,
diff --git a/srsue/hdr/phy/phy.h b/srsue/hdr/phy/phy.h
index e942a16df..8f21df510 100644
--- a/srsue/hdr/phy/phy.h
+++ b/srsue/hdr/phy/phy.h
@@ -39,7 +39,7 @@ namespace srsue {
 
 typedef _Complex float cf_t;
 
-class phy : public ue_lte_phy_base, public srslte::thread
+class phy final : public ue_lte_phy_base, public srslte::thread
 {
 public:
   explicit phy(srslte::logger* logger_) : logger(logger_), workers_pool(MAX_WORKERS), common(), thread("PHY"){};