diff --git a/src/darwin/Framework/CHIP/MTRDeviceControllerDataStore.mm b/src/darwin/Framework/CHIP/MTRDeviceControllerDataStore.mm
index 86cdfdd5ceffdd..4fa9fd0f8d1d1f 100644
--- a/src/darwin/Framework/CHIP/MTRDeviceControllerDataStore.mm
+++ b/src/darwin/Framework/CHIP/MTRDeviceControllerDataStore.mm
@@ -521,6 +521,15 @@ - (BOOL)_deleteAttributeValueForNodeID:(NSNumber *)nodeID endpointID:(NSNumber *
     return attributesToReturn;
 }
 
+#ifdef DEBUG
+- (void)unitTestPruneEmptyStoredAttributesBranches
+{
+    dispatch_sync(_storageDelegateQueue, ^{
+        [self _pruneEmptyStoredAttributesBranches];
+    });
+}
+#endif
+
 - (void)_pruneEmptyStoredAttributesBranches
 {
     dispatch_assert_queue(_storageDelegateQueue);
diff --git a/src/darwin/Framework/CHIPTests/MTRPerControllerStorageTests.m b/src/darwin/Framework/CHIPTests/MTRPerControllerStorageTests.m
index cb1bd73153faa5..a81f68b6185cfb 100644
--- a/src/darwin/Framework/CHIPTests/MTRPerControllerStorageTests.m
+++ b/src/darwin/Framework/CHIPTests/MTRPerControllerStorageTests.m
@@ -1152,7 +1152,7 @@ - (void)test008_TestDataStoreDirect
     [controller.controllerDataStore storeAttributeValues:testAttribute forNodeID:@(2001)];
     NSString * testAttributeValueKey = [controller.controllerDataStore _attributeValueKeyForNodeID:@(2001) endpointID:@(1) clusterID:@(1) attributeID:@(1)];
     [storageDelegate controller:controller removeValueForKey:testAttributeValueKey securityLevel:MTRStorageSecurityLevelSecure sharingType:MTRStorageSharingTypeNotShared];
-    [controller.controllerDataStore _pruneEmptyStoredAttributesBranches];
+    [controller.controllerDataStore unitTestPruneEmptyStoredAttributesBranches];
 
     // Now check the indexes are pruned
     NSString * testAttributeIndexKey = [controller.controllerDataStore _attributeIndexKeyForNodeID:@(2001) endpointID:@(1) clusterID:@(1)];
diff --git a/src/darwin/Framework/CHIPTests/TestHelpers/MTRTestDeclarations.h b/src/darwin/Framework/CHIPTests/TestHelpers/MTRTestDeclarations.h
index 86e4564e45f8c0..02a711ee183470 100644
--- a/src/darwin/Framework/CHIPTests/TestHelpers/MTRTestDeclarations.h
+++ b/src/darwin/Framework/CHIPTests/TestHelpers/MTRTestDeclarations.h
@@ -28,7 +28,7 @@ NS_ASSUME_NONNULL_BEGIN
 - (void)storeAttributeValues:(NSArray<NSDictionary *> *)dataValues forNodeID:(NSNumber *)nodeID;
 - (void)clearStoredAttributesForNodeID:(NSNumber *)nodeID;
 - (void)clearAllStoredAttributes;
-- (void)_pruneEmptyStoredAttributesBranches;
+- (void)unitTestPruneEmptyStoredAttributesBranches;
 - (NSString *)_endpointIndexKeyForNodeID:(NSNumber *)nodeID;
 - (NSString *)_clusterIndexKeyForNodeID:(NSNumber *)nodeID endpointID:(NSNumber *)endpointID;
 - (NSString *)_attributeIndexKeyForNodeID:(NSNumber *)nodeID endpointID:(NSNumber *)endpointID clusterID:(NSNumber *)clusterID;