diff --git a/tests/suites/test_suite_dhm.function b/tests/suites/test_suite_dhm.function
index c7c2b8c55..652b15b08 100644
--- a/tests/suites/test_suite_dhm.function
+++ b/tests/suites/test_suite_dhm.function
@@ -54,5 +54,8 @@ dhm_do_dhm:x_size:radix_P:input_P:radix_G:input_G
     TEST_ASSERT( sec_srv_len == sec_cli_len );
     TEST_ASSERT( sec_srv_len != 0 );
     TEST_ASSERT( memcmp( sec_srv, sec_cli, sec_srv_len ) == 0 );
+
+    dhm_free( &ctx_srv );
+    dhm_free( &ctx_cli );
 }
 END_CASE