diff --git a/libvirt-override.c b/libvirt-override.c
index 3765a43..7f746ed 100644
--- a/libvirt-override.c
+++ b/libvirt-override.c
@@ -259,7 +259,7 @@ setPyVirTypedParameter(PyObject *info,
     return ret;
 
 cleanup:
-    VIR_FREE(ret);
+    virTypedParamsFree(ret, size);
     return NULL;
 }