diff --git a/components/mmplugin/signalindicator.cpp b/components/mmplugin/signalindicator.cpp
index 3a67c597..2afe746c 100644
--- a/components/mmplugin/signalindicator.cpp
+++ b/components/mmplugin/signalindicator.cpp
@@ -138,9 +138,13 @@ void SignalIndicator::updateModem()
         }
     }
 
-    connect(m_modem.get(), &ModemManager::Modem::signalQualityChanged, this, &SignalIndicator::strengthChanged);
-    connect(m_3gppModem.get(), &ModemManager::Modem3gpp::operatorNameChanged, this, &SignalIndicator::nameChanged);
-    connect(m_modem.get(), &ModemManager::Modem::unlockRequiredChanged, this, &SignalIndicator::simLockedChanged);
+    if (m_modem) {
+        connect(m_modem.get(), &ModemManager::Modem::signalQualityChanged, this, &SignalIndicator::strengthChanged);
+        connect(m_modem.get(), &ModemManager::Modem::unlockRequiredChanged, this, &SignalIndicator::simLockedChanged);
+    }
+    if (m_3gppModem) {
+        connect(m_3gppModem.get(), &ModemManager::Modem3gpp::operatorNameChanged, this, &SignalIndicator::nameChanged);
+    }
 
     Q_EMIT mobileDataSupportedChanged();
     Q_EMIT nameChanged();