diff --git a/src/ast.c b/src/ast.c
index 9ad2b7d993ec9a25a0e1abe5ae465feb2541adc6..c9e0292a09605b11dab2aec052ce53f4c87ef895 100644
--- a/src/ast.c
+++ b/src/ast.c
@@ -397,6 +397,7 @@ mcc_ast_new_statement_list(struct mcc_ast_statement *statement)
 	assert(list);
 
 	list->statement = statement;
+	list->next = NULL;
 
 	return list;
 }
@@ -409,6 +410,7 @@ void mcc_ast_delete_statement_list(
 		mcc_ast_delete_statement_list(statement_list->next);
 	}
 	mcc_ast_delete_statement(statement_list->statement);
+	free(statement_list);
 }
 
 struct mcc_ast_statement *
diff --git a/src/symbol_table.c b/src/symbol_table.c
index 32b148c40b920da8ed5156aac21c51bde0c3a675..c50136d7980d1c6e3576bacab0a36769f38ede34 100644
--- a/src/symbol_table.c
+++ b/src/symbol_table.c
@@ -20,6 +20,7 @@ struct mcc_symbol *mcc_symbol_new_symbol_variable(char* variable_name, enum mcc_
     symbol -> variable_name = variable_name;
     symbol -> data_type = data_type;
     symbol -> symbol_type = MCC_SYMBOL_TYPE_VARIABLE;
+    symbol -> func_arguments = NULL;
 
     return symbol;
 }
@@ -32,6 +33,7 @@ struct mcc_symbol *mcc_symbol_new_symbol_array(char* variable_name, enum mcc_ast
     symbol -> variable_name = variable_name;
     symbol -> data_type = data_type;
     symbol -> array_size = array_size;
+    symbol -> func_arguments = NULL;
 
     return symbol;
 }
@@ -68,7 +70,7 @@ void mcc_symbol_delete_symbol(void *symbol) {
     struct mcc_symbol *s = (struct mcc_symbol *) symbol;
 
     if (s != NULL) {
-        if (s -> func_arguments) {
+        if (s -> func_arguments != NULL) {
             mcc_delete_array(s ->func_arguments, NULL);
         }
     }
@@ -81,7 +83,7 @@ struct mcc_symbol_table *mcc_symbol_table_new_table(
 
     struct mcc_symbol_table *table = malloc(sizeof(*table));
 
-    table ->inner_tables = mcc_create_dynamic_array(MCC_SYMBOL_TABLE_CHILDREN_SIZE);
+    table -> inner_tables = mcc_create_dynamic_array(MCC_SYMBOL_TABLE_CHILDREN_SIZE);
     table -> symbols = mcc_create_dynamic_array(MCC_SYMBOL_TABLE_SYMBOL_SIZE);
     table -> parent = parent;
 
@@ -89,12 +91,13 @@ struct mcc_symbol_table *mcc_symbol_table_new_table(
 }
 
 void mcc_symbol_table_delete_table(void *table) {
-    struct mcc_symbol_table *st = (struct mcc_symbol_table *) table;
     // Delete symbols
     assert(table);
 
+    struct mcc_symbol_table *st = (struct mcc_symbol_table *) table;
+
     mcc_delete_array(st -> symbols, mcc_symbol_delete_symbol);
-    mcc_delete_array(st ->inner_tables, mcc_symbol_table_delete_table);
+    mcc_delete_array(st -> inner_tables, mcc_symbol_table_delete_table);
 
     free(table);
 }
@@ -123,7 +126,6 @@ int mcc_symbol_table_insert_symbol(struct mcc_symbol_table *table, struct mcc_sy
     assert(symbol);
 
     return mcc_add_to_array(table -> symbols, symbol);
-
 }
 
 struct mcc_symbol *mcc_symbol_table_get_symbol(struct mcc_symbol_table *symbol_table, char *symbol_name, bool propagate) {