diff --git a/daemon/src/sip/sipaccount.h b/daemon/src/sip/sipaccount.h
index 56cdd166b2fadbeb80f6ce14434b70771921d0df..f5d8fa88d897a3011d4e9e67dbf255eb509e2fea 100644
--- a/daemon/src/sip/sipaccount.h
+++ b/daemon/src/sip/sipaccount.h
@@ -582,7 +582,7 @@ class SIPAccount : public SIPAccountBase {
         /**
          * The STUN server name (hostname)
          */
-        pj_str_t stunServerName_ {};
+        pj_str_t stunServerName_ {nullptr, 0};
 
         /**
          * The STUN server port
diff --git a/daemon/src/sip/sipaccountbase.h b/daemon/src/sip/sipaccountbase.h
index 3a0da287cd7fef98ab675fdde74d3031215426b7..649af8c921ff10f25bed3d2467cb00ae0445c7b2 100644
--- a/daemon/src/sip/sipaccountbase.h
+++ b/daemon/src/sip/sipaccountbase.h
@@ -147,7 +147,7 @@ public:
         return false;
     }
 
-    virtual pj_str_t getStunServerName() const { return pj_str_t {}; };
+    virtual pj_str_t getStunServerName() const { return pj_str_t {nullptr, 0}; };
 
     virtual pj_uint16_t getStunPort() const { return 0; };