diff --git a/contrib/spoa_server/ps_python.c b/contrib/spoa_server/ps_python.c
index 6843cdca5..5cb7ca86e 100644
--- a/contrib/spoa_server/ps_python.c
+++ b/contrib/spoa_server/ps_python.c
@@ -415,7 +415,7 @@ static int ps_python_start_worker(struct worker *w)
 	}
 
 	ipv6_address = PyObject_GetAttrString(module_ipaddress, "IPv6Address");
-	if (ipv4_address == NULL) {
+	if (ipv6_address == NULL) {
 		PyErr_Print();
 		return 0;
 	}