diff --git a/contrib/spoa_server/ps_python.c b/contrib/spoa_server/ps_python.c
index 3ce85c8..b383680 100644
--- a/contrib/spoa_server/ps_python.c
+++ b/contrib/spoa_server/ps_python.c
@@ -304,18 +304,24 @@
 
 	ipv4_address = PyObject_GetAttrString(module_ipaddress, "IPv4Address");
 	if (ipv4_address == NULL) {
+		Py_DECREF(module_ipaddress);
 		PyErr_Print();
 		return 0;
 	}
 
 	ipv6_address = PyObject_GetAttrString(module_ipaddress, "IPv6Address");
 	if (ipv6_address == NULL) {
+		Py_DECREF(ipv4_address);
+		Py_DECREF(module_ipaddress);
 		PyErr_Print();
 		return 0;
 	}
 
 	m = Py_InitModule("spoa", spoa_methods);
 	if (m == NULL) {
+		Py_DECREF(ipv4_address);
+		Py_DECREF(ipv6_address);
+		Py_DECREF(module_ipaddress);
 		PyErr_Print();
 		return 0;
 	}