diff --git a/src/sip/sipvoiplink.cpp b/src/sip/sipvoiplink.cpp
index db9b4be7618..8832d7e8dc6 100644
--- a/src/sip/sipvoiplink.cpp
+++ b/src/sip/sipvoiplink.cpp
@@ -493,6 +493,7 @@ SIPVoIPLink::SIPVoIPLink() : pool_(nullptr, pj_pool_release)
     throw VoipLinkException(#ret " failed"); \
 } while (0)
 
+    sip_utils::register_thread();
     pj_caching_pool_init(&cp_, &pj_pool_factory_default_policy, 0);
     pool_.reset(pj_pool_create(&cp_.factory, PACKAGE, 64 * 1024, 4096, nullptr));
     if (!pool_)