diff --git a/src/monitor/NodeStatusWnd.h b/src/monitor/NodeStatusWnd.h
index 6bbc3dc0..9aeea5f4 100644
--- a/src/monitor/NodeStatusWnd.h
+++ b/src/monitor/NodeStatusWnd.h
@@ -215,8 +215,6 @@ private:
         if (FVTerm::getFOutput()->getMaxColor() < 16)
             setBold();
 
-        const auto& wc = getColorTheme();
-
         if (!m_tx) {
             if (m_failed) {
                 setColor(FColor::Black, FColor::LightRed);
diff --git a/src/sysview/DynRegroupSubscriberWnd.h b/src/sysview/DynRegroupSubscriberWnd.h
index f8072409..b693eaa6 100644
--- a/src/sysview/DynRegroupSubscriberWnd.h
+++ b/src/sysview/DynRegroupSubscriberWnd.h
@@ -169,7 +169,7 @@ private:
                 redraw();
             });
             m_subscriber.addCallback("changed", [&]() { 
-                if (m_subscriber.getText().c_str() == "") {
+                if (m_subscriber.getText().getLength() == 0U) {
                     m_srcId = 1U;
                     return;
                 }
diff --git a/src/sysview/NodeStatusWnd.h b/src/sysview/NodeStatusWnd.h
index c2e9a16b..37c8fd18 100644
--- a/src/sysview/NodeStatusWnd.h
+++ b/src/sysview/NodeStatusWnd.h
@@ -283,8 +283,6 @@ private:
         if (FVTerm::getFOutput()->getMaxColor() < 16)
             setBold();
 
-        const auto& wc = getColorTheme();
-
         if (!m_tx) {
             if (m_failed) {
                 setColor(FColor::Black, FColor::LightRed);
@@ -732,8 +730,6 @@ private:
     {
         assert(wdgt != nullptr);
 
-        const auto& rootWidget = getRootWidget();
-
         uint8_t channelId = peerObj["channelId"].get<uint8_t>();
         uint32_t channelNo = peerObj["channelNo"].get<uint32_t>();