diff --git a/mscore/inspector/inspector.cpp b/mscore/inspector/inspector.cpp
index 385fc5bfb5348..11dc61cd1cd49 100644
--- a/mscore/inspector/inspector.cpp
+++ b/mscore/inspector/inspector.cpp
@@ -72,6 +72,8 @@
 #include "libmscore/accidental.h"
 #include "libmscore/articulation.h"
 #include "libmscore/fermata.h"
+#include "libmscore/stafftypechange.h"
+#include "libmscore/mscore.h"
 #include "libmscore/stafftextbase.h"
 
 namespace Ms {
@@ -502,6 +504,31 @@ InspectorStaffTypeChange::InspectorStaffTypeChange(QWidget* parent)
       mapSignals();
       }
 
+//---------------------------------------------------------
+//   setElement
+//---------------------------------------------------------
+
+void InspectorStaffTypeChange::setElement()
+      {
+      InspectorBase::setElement();
+      bool hasTabStaff = false;
+      bool hasNonTabStaff = false;
+      for (Element* el : *(inspector->el())) {
+            StaffTypeChange* stc = toStaffTypeChange(el);
+            // tab staff shouldn't have key signature
+            if (stc->staffType()->group() == StaffGroup::TAB) {
+                  hasTabStaff = true;
+                  sl.genKeysig->setEnabled(false);
+                  sl.resetGenKeysig->setEnabled(false);
+                  }
+            else {
+                  hasNonTabStaff = true;
+                  }
+            }
+      if (hasTabStaff && !hasNonTabStaff)
+            sl.genKeysig->setChecked(false);
+      }
+
 //---------------------------------------------------------
 //   InspectorVBox
 //---------------------------------------------------------
diff --git a/mscore/inspector/inspector.h b/mscore/inspector/inspector.h
index 8cbe9ed041c43..bb2709d891b7c 100644
--- a/mscore/inspector/inspector.h
+++ b/mscore/inspector/inspector.h
@@ -104,6 +104,7 @@ class InspectorStaffTypeChange : public InspectorBase {
 
    public:
       InspectorStaffTypeChange(QWidget* parent);
+      virtual void setElement() override;
       };
 
 //---------------------------------------------------------