diff --git a/src/alias/alias.c b/src/alias/alias.c
index 999fc37..3cd3dd7 100644
--- a/src/alias/alias.c
+++ b/src/alias/alias.c
@@ -59,3 +59,11 @@ char* get_alias(lst** aliases, const char* key)
 	}
 	return NULL;
 }
+
+void alias_del(void *ptr)
+{
+	alias_t *alias = ptr;
+	free(alias->key);
+	free(alias->value);
+	free(alias);
+}
diff --git a/src/alias/alias.h b/src/alias/alias.h
index 8c73e54..99fb60b 100644
--- a/src/alias/alias.h
+++ b/src/alias/alias.h
@@ -10,5 +10,6 @@ typedef struct s_alias
 
 lst** aliases_init();
 lst** aliases_save(lst** aliases);
+void alias_del(void *ptr);
 char* get_alias(lst** aliases, const char* key);
 int add_alias(lst** root, const char* key, const char* value);
diff --git a/src/main.c b/src/main.c
index 0993289..a0b1aef 100644
--- a/src/main.c
+++ b/src/main.c
@@ -51,6 +51,7 @@ int main(int ac, char **av, char **env_str)
 		}
 		line = get_user_input(&data);
 	}
+	lst_clear(data.aliases, alias_del);
 	lst_clear(data.env, &env_del);
 	return (0);