diff --git a/include/zenoh-pico/session/interest.h b/include/zenoh-pico/session/interest.h
index 79879a08f..a4eeb43ba 100644
--- a/include/zenoh-pico/session/interest.h
+++ b/include/zenoh-pico/session/interest.h
@@ -23,9 +23,9 @@
 _z_session_interest_rc_t *_z_get_interest_by_id(_z_session_t *zn, const _z_zint_t id);
 _z_session_interest_rc_t *_z_register_interest(_z_session_t *zn, _z_session_interest_t *intr);
 void _z_unregister_interest(_z_session_t *zn, _z_session_interest_rc_t *intr);
-void _z_flush_interest(_z_session_t *zn);
 #endif  // Z_FEATURE_INTEREST == 1
 
+void _z_flush_interest(_z_session_t *zn);
 int8_t _z_interest_process_declares(_z_session_t *zn, const _z_declaration_t *decl);
 int8_t _z_interest_process_undeclares(_z_session_t *zn, const _z_declaration_t *decl);
 int8_t _z_interest_process_final_interest(_z_session_t *zn, uint32_t id);
diff --git a/include/zenoh-pico/session/session.h b/include/zenoh-pico/session/session.h
index 102ed6490..5f2980d86 100644
--- a/include/zenoh-pico/session/session.h
+++ b/include/zenoh-pico/session/session.h
@@ -237,7 +237,7 @@ typedef struct {
     uint8_t _type;
 } _z_declare_data_t;
 
-void _z_declare_data_clear(_z_declare_data_t * data);
+void _z_declare_data_clear(_z_declare_data_t *data);
 _Z_ELEM_DEFINE(_z_declare_data, _z_declare_data_t, _z_noop_size, _z_declare_data_clear, _z_noop_copy)
 _Z_LIST_DEFINE(_z_declare_data, _z_declare_data_t)
 
diff --git a/src/session/interest.c b/src/session/interest.c
index b7fe621ed..499a917d6 100644
--- a/src/session/interest.c
+++ b/src/session/interest.c
@@ -351,6 +351,7 @@ void _z_unregister_interest(_z_session_t *zn, _z_session_interest_rc_t *intr) {
 void _z_flush_interest(_z_session_t *zn) {
     _zp_session_lock_mutex(zn);
     _z_session_interest_rc_list_free(&zn->_local_interests);
+    _z_declare_data_list_free(&zn->_remote_declares);
     _zp_session_unlock_mutex(zn);
 }
 
@@ -407,6 +408,8 @@ int8_t _z_interest_process_declare_interest(_z_session_t *zn, _z_keyexpr_t key,
 }
 
 #else
+void _z_flush_interest(_z_session_t *zn) { _ZP_UNUSED(zn); }
+
 int8_t _z_interest_process_declares(_z_session_t *zn, const _z_declaration_t *decl) {
     _ZP_UNUSED(zn);
     _ZP_UNUSED(decl);
diff --git a/src/session/utils.c b/src/session/utils.c
index d5d7fe1d7..eac976016 100644
--- a/src/session/utils.c
+++ b/src/session/utils.c
@@ -18,6 +18,7 @@
 
 #include "zenoh-pico/config.h"
 #include "zenoh-pico/protocol/core.h"
+#include "zenoh-pico/session/interest.h"
 #include "zenoh-pico/session/query.h"
 #include "zenoh-pico/session/queryable.h"
 #include "zenoh-pico/session/resource.h"
@@ -115,6 +116,7 @@ void _z_session_clear(_z_session_t *zn) {
 #if Z_FEATURE_QUERY == 1
     _z_flush_pending_queries(zn);
 #endif
+    _z_flush_interest(zn);
 
 #if Z_FEATURE_MULTI_THREAD == 1
     zp_mutex_free(&zn->_mutex_inner);