diff --git a/dot/parachain/availability-store/availability_store.go b/dot/parachain/availability-store/availability_store.go
index 75c2709f3e..6cf1cd3627 100644
--- a/dot/parachain/availability-store/availability_store.go
+++ b/dot/parachain/availability-store/availability_store.go
@@ -9,6 +9,7 @@ import (
 	"encoding/binary"
 	"errors"
 	"fmt"
+	"sync"
 	"time"
 
 	parachaintypes "github.com/ChainSafe/gossamer/dot/parachain/types"
@@ -58,7 +59,7 @@ func (sc *subsystemClock) Now() timestamp {
 // pruningConfig Struct holding pruning timing configuration.
 // The only purpose of this structure is to use different timing
 // configurations in production and in testing.
-type PruningConfig struct {
+type pruningConfig struct {
 	keepUnavailableFor time.Duration
 	keepFinalizedFor   time.Duration
 	pruningInterval    time.Duration
@@ -715,3 +716,8 @@ func (av *AvailabilityStoreSubsystem) handleStoreAvailableData(msg StoreAvailabl
 	}
 	return nil
 }
+
+func (av *AvailabilityStoreSubsystem) Stop() {
+	av.cancel()
+	av.wg.Wait()
+}
diff --git a/dot/parachain/availability-store/register.go b/dot/parachain/availability-store/register.go
index 932945b405..b77e81df4b 100644
--- a/dot/parachain/availability-store/register.go
+++ b/dot/parachain/availability-store/register.go
@@ -9,6 +9,7 @@ func Register(overseerChan chan<- any, st *state.Service) (*AvailabilityStoreSub
 	availabilityStore := NewAvailabilityStore(st.DB())
 
 	availabilityStoreSubsystem := AvailabilityStoreSubsystem{
+		pruningConfig:       defaultPruningConfig,
 		SubSystemToOverseer: overseerChan,
 		availabilityStore:   *availabilityStore,
 	}