diff --git a/srsue/hdr/phy/lte/cc_worker.h b/srsue/hdr/phy/lte/cc_worker.h
index 4500ccfce..48ee14b0a 100644
--- a/srsue/hdr/phy/lte/cc_worker.h
+++ b/srsue/hdr/phy/lte/cc_worker.h
@@ -98,7 +98,7 @@ private:
   uint32_t               signal_buffer_max_samples          = 0;
   const static uint32_t  mch_payload_buffer_sz              = SRSRAN_MAX_BUFFER_SIZE_BYTES;
   uint8_t                mch_payload_buffer[mch_payload_buffer_sz];
-  srsran_softbuffer_rx_t mch_softbuffer;
+  srsran_softbuffer_rx_t mch_softbuffer = {};
 
   /* Objects for DL */
   srsran_ue_dl_t     ue_dl     = {};
diff --git a/srsue/hdr/stack/mac/mac.h b/srsue/hdr/stack/mac/mac.h
index c38f66d05..b0fa0fccf 100644
--- a/srsue/hdr/stack/mac/mac.h
+++ b/srsue/hdr/stack/mac/mac.h
@@ -130,12 +130,12 @@ private:
 
   /* Buffers for PCH reception (not included in DL HARQ) */
   const static uint32_t  pch_payload_buffer_sz = 8 * 1024;
-  srsran_softbuffer_rx_t pch_softbuffer;
+  srsran_softbuffer_rx_t pch_softbuffer        = {};
   uint8_t                pch_payload_buffer[pch_payload_buffer_sz];
 
   /* Buffers for MCH reception (not included in DL HARQ) */
   const static uint32_t  mch_payload_buffer_sz = SRSRAN_MAX_BUFFER_SIZE_BYTES;
-  srsran_softbuffer_rx_t mch_softbuffer;
+  srsran_softbuffer_rx_t mch_softbuffer        = {};
   uint8_t                mch_payload_buffer[mch_payload_buffer_sz];
   srsran::mch_pdu        mch_msg;