diff --git a/src/gui/components/cc_frm_signalbars.cpp b/src/gui/components/cc_frm_signalbars.cpp
index a046e10da..d50bf21e1 100644
--- a/src/gui/components/cc_frm_signalbars.cpp
+++ b/src/gui/components/cc_frm_signalbars.cpp
@@ -29,6 +29,7 @@
 
 #include <global.h>
 #include <neutrino.h>
+#include <zapit/femanager.h>
 #include "cc_frm_signalbars.h"
 #include <sstream>
 
@@ -262,7 +263,7 @@ CSignalBox::CSignalBox(const int& xpos, const int& ypos, const int& w, const int
 	initVarSigBox();
 	vertical = vert;
 
-	sbx_frontend 	= frontend_ref;
+	sbx_frontend 	= (frontend_ref == NULL) ? CFEManager::getInstance()->getLiveFE() : frontend_ref;
 	x 		= xpos;
 	y 		= ypos;
 	width 		= w;
diff --git a/src/gui/components/cc_frm_signalbars.h b/src/gui/components/cc_frm_signalbars.h
index 846e0707e..c18344142 100644
--- a/src/gui/components/cc_frm_signalbars.h
+++ b/src/gui/components/cc_frm_signalbars.h
@@ -272,7 +272,7 @@ class CSignalBox : public CComponentsForm
 
 	public:
 		///class constructor for signal noise ratio.
-		CSignalBox(const int& xpos, const int& ypos, const int& w, const int& h, CFrontend *frontend_ref, const bool vertical = true);
+		CSignalBox(const int& xpos, const int& ypos, const int& w, const int& h, CFrontend *frontend_ref = NULL, const bool vertical = true);
 
 		///returns the signal object, type = CSignalBar*
 		CSignalBar* getScaleObject(){return sbar;};