diff --git a/tests/testutil.c b/tests/testutil.c
index 700b25f..245d48b 100644
--- a/tests/testutil.c
+++ b/tests/testutil.c
@@ -22,3 +22,12 @@ void	assert_strequal(char *str1, char *str2)
  	ft_dprintf(STDERR_FILENO, "to eq   \t[%s]\n", str2);
 	assert(ret == 0);
 }
+
+extern void __lsan_do_leak_check(void)
+        __attribute__((weak));
+
+void    do_leak_check(void)
+{
+        if (__lsan_do_leak_check != NULL)
+                __lsan_do_leak_check();
+}
diff --git a/tests/testutil.h b/tests/testutil.h
index d797dc3..49b0293 100644
--- a/tests/testutil.h
+++ b/tests/testutil.h
@@ -6,7 +6,7 @@
 /*   By: khais <marvin@42.fr>                       +#+  +:+       +#+        */
 /*                                                +#+#+#+#+#+   +#+           */
 /*   Created: 2025/02/13 15:57:21 by khais             #+#    #+#             */
-/*   Updated: 2025/02/13 15:57:44 by khais            ###   ########.fr       */
+/*   Updated: 2025/03/06 15:30:55 by khais            ###   ########.fr       */
 /*                                                                            */
 /* ************************************************************************** */
 
@@ -14,5 +14,6 @@
 # define TESTUTIL_H
 
 void	assert_strequal(char *str1, char *str2);
+void    do_leak_check(void);
 
 #endif