diff --git a/runtime/include/module.h b/runtime/include/module.h
index b8b2607..76f757a 100644
--- a/runtime/include/module.h
+++ b/runtime/include/module.h
@@ -20,7 +20,6 @@
 
 #define MODULE_DEFAULT_REQUEST_RESPONSE_SIZE (PAGE_SIZE)
 
-
 #define MODULE_MAX_ARGUMENT_COUNT 16
 #define MODULE_MAX_ARGUMENT_SIZE  64
 #define MODULE_MAX_NAME_LENGTH    32
@@ -79,15 +78,7 @@ struct module {
 
 	/* Entry Function to invoke serverless function */
 	mod_main_fn_t main;
-	
-	//struct module *next_module; /* the next module in the chain */
-
-	/* the left and right children module in the tree */
-	struct module *left_module;
-	struct module *right_module;
-	/*  parent module or not?*/
-	bool is_parent;
-	
+	struct module *next_module; /* the next module in the chain */
 };
 
 /*************************
diff --git a/runtime/include/sandbox_functions.h b/runtime/include/sandbox_functions.h
index 1f0a59e..b365e6b 100644
--- a/runtime/include/sandbox_functions.h
+++ b/runtime/include/sandbox_functions.h
@@ -225,8 +225,7 @@ sandbox_mem_print_perf(struct sandbox *sandbox)
         uint64_t blocked_us      = sandbox->blocked_duration / runtime_processor_speed_MHz;
         uint64_t returned_us     = sandbox->returned_duration / runtime_processor_speed_MHz;
 
-	//if (sandbox->module->next_module == NULL) {
-	if(sandbox->module->is_parent) {
+	if (sandbox->module->next_module == NULL) {	
 		uint64_t total_time = (sandbox->completion_timestamp - sandbox->request_arrival_timestamp) / runtime_processor_speed_MHz;
                 bool miss_deadline = sandbox->completion_timestamp > sandbox->absolute_deadline ? true : false;
 		uint64_t delayed_us = (sandbox->completion_timestamp - sandbox->absolute_deadline) 
diff --git a/runtime/src/module.c b/runtime/src/module.c
index 521ed5c..f0810fe 100644
--- a/runtime/src/module.c
+++ b/runtime/src/module.c
@@ -19,8 +19,7 @@
 
 const int JSON_MAX_ELEMENT_COUNT = 16;
 const int JSON_MAX_ELEMENT_SIZE  = 1024;
-DEQUE_PROTOTYPE(Treequeue,struct module *)
-static struct deque_Treequeue *tree_queue;
+
 /*************************
  * Private Static Inline *
  ************************/
@@ -375,29 +374,7 @@ module_new_from_json(char *file_name)
 	int   	module_count		= 0;
 	char 	*request_headers 	= NULL;
 	char 	*reponse_headers 	= NULL;
-/*	struct 	module *tail_module 	= NULL;
-	deque_init_Treequeue(tree_queue, total_tokens);
-	assert(tokens[0].type == JSMN_OBJECT);
-
-	while (deque_is_empty_Treequeue(tree_queue))
-	{
-	    Node *current = dequeue(&queue);
-
-    if (is_parent) {
-        current->left = getNextNode();  
-        enqueue(&queue, current->left);
-    }
-
-    if (is_parent) {
-        current->right = getNextNode();  
-        enqueue(&queue, current->right);
-    }
-    }
-	}*/
-	struct module **nodes = malloc(JSON_MAX_ELEMENT_COUNT * sizeof(struct module*));
-	if (nodes == NULL) {
-        fprintf(stderr, "Memory allocation failed for nodes array\n");
-    }
+	struct 	module *tail_module 	= NULL;
 	for (int i = 0; i < total_tokens; i++) {
 		assert(tokens[i].type == JSMN_OBJECT);
 
@@ -477,18 +454,7 @@ module_new_from_json(char *file_name)
 				} else {
 					panic("Expected active key to be a JSON boolean, was %s\n", val);
 				}
-			}else if(strcmp(key,"is_parent") == 0)
-			{
-				assert(tokens[i + j + 1].type == JSMN_PRIMITIVE);
-                                if (val[0] == 't') {
-                                        is_tail_module = true;
-                                } else if (val[0] == 'f') {
-                                        is_tail_module = false;
-                                } else {
-                                        panic("Expected is-parent key to be a JSON boolean, was %s\n", val);
-                                }
-			}
-			/*else if (strcmp(key, "tail-module") == 0) {
+			} else if (strcmp(key, "tail-module") == 0) {
 				assert(tokens[i + j + 1].type == JSMN_PRIMITIVE);
                                 if (val[0] == 't') {
                                         is_tail_module = true;
@@ -497,7 +463,7 @@ module_new_from_json(char *file_name)
                                 } else {
                                         panic("Expected tail_module key to be a JSON boolean, was %s\n", val);
                                 }
-			}*/else if (strcmp(key, "relative-deadline-us") == 0) {
+			} else if (strcmp(key, "relative-deadline-us") == 0) {
 				int64_t buffer = strtoll(val, NULL, 10);
 				if (buffer < 0 || buffer > (int64_t)RUNTIME_RELATIVE_DEADLINE_US_MAX)
 					panic("Relative-deadline-us must be between 0 and %ld, was %ld\n",
@@ -602,16 +568,15 @@ module_new_from_json(char *file_name)
 			if (module == NULL) goto module_new_err;
 			
 			assert(module);
-			if(is_tail_module) module->is_parent = true;
-			nodes[i] = module;
-			// if (tail_module != NULL) { tail_module->next_module = module; }
-			// tail_module			= module;
-			// tail_module->next_module 	= NULL;
-
-			// /* if this is the tail module, reset tail_module to NULL to build another new chain */		
-			// if (is_tail_module) {
-			// 	tail_module = NULL;
-			// }
+
+			if (tail_module != NULL) { tail_module->next_module = module; }
+			tail_module			= module;
+			tail_module->next_module 	= NULL;
+
+			/* if this is the tail module, reset tail_module to NULL to build another new chain */		
+			if (is_tail_module) {
+				tail_module = NULL;
+			}
 	
 			module_set_http_info(module, request_count, request_headers, request_content_type,
 			                     response_count, reponse_headers, response_content_type);
@@ -623,13 +588,6 @@ module_new_from_json(char *file_name)
 	}
 
 	if (module_count == 0) panic("%s contained no active modules\n", file_name);
-	for (int i = 0; i <= module_count; i++) {
-    int left_index = 2 * i + 1;
-    int right_index = 2 * i + 2;
-    if (left_index <= module_count) nodes[i]->left_module = nodes[left_index];
-    if (right_index <= module_count) nodes[i]->right_module = nodes[right_index];
-	}
-	free(nodes);
 #ifdef LOG_MODULE_LOADING
 	debuglog("Loaded %d module%s!\n", module_count, module_count > 1 ? "s" : "");
 #endif