diff --git a/src/kernel/config.test.c b/src/kernel/config.test.c
index de1d0173e..fab30fc6e 100644
--- a/src/kernel/config.test.c
+++ b/src/kernel/config.test.c
@@ -132,6 +132,7 @@ static void test_get_set_param(CuTest * tc)
     CuAssertStrEquals(tc, "foo", get_param(par, "bar"));
     set_param(&par, "bar", NULL);
     CuAssertPtrEquals(tc, NULL, (void *)get_param(par, "bar"));
+    free_params(&par);
     test_cleanup();
 }
 
@@ -144,6 +145,7 @@ static void test_param_int(CuTest * tc)
     set_param(&par, "bar", "42");
     CuAssertIntEquals(tc, 23, get_param_int(par, "foo", 0));
     CuAssertIntEquals(tc, 42, get_param_int(par, "bar", 0));
+    free_params(&par);
     test_cleanup();
 }
 
@@ -156,6 +158,7 @@ static void test_param_flt(CuTest * tc)
     set_param(&par, "bar", "42.0");
     CuAssertDblEquals(tc, 23.0, get_param_flt(par, "foo", 0.0), 0.01);
     CuAssertDblEquals(tc, 42.0, get_param_flt(par, "bar", 0.0), 0.01);
+    free_params(&par);
     test_cleanup();
 }