diff --git a/apps/osmocom_fft b/apps/osmocom_fft
index b23124a..f730b08 100755
--- a/apps/osmocom_fft
+++ b/apps/osmocom_fft
@@ -242,7 +242,7 @@ class app_top_block(gr.top_block, Qt.QMainWindow):
             from gnuradio import fosphor
             self.scope = fosphor.qt_sink_c()
             self.scope.set_frequency_range(0, input_rate)
-            self.scope_win = sip.wrapinstance(self.scope.pyqwidget(), Qt.QWidget)
+            self.scope_win = sip.wrapinstance(self.scope.qwidget(), Qt.QWidget)
             self.scope_win.setMinimumSize(800, 300)
         elif options.waterfall:
             self.scope = qtgui.waterfall_sink_c(
@@ -256,7 +256,7 @@ class app_top_block(gr.top_block, Qt.QMainWindow):
             self.scope.enable_grid(False)
             self.scope.enable_axis_labels(True)
             self.scope.set_intensity_range(-100, 20)
-            self.scope_win = sip.wrapinstance(self.scope.pyqwidget(), Qt.QWidget)
+            self.scope_win = sip.wrapinstance(self.scope.qwidget(), Qt.QWidget)
             self.scope_win.setMinimumSize(800, 420)
 
         elif options.oscilloscope:
@@ -266,7 +266,7 @@ class app_top_block(gr.top_block, Qt.QMainWindow):
                 name="",
                 nconnections=1
             )
-            self.scope_win = sip.wrapinstance(self.scope.pyqwidget(), Qt.QWidget)
+            self.scope_win = sip.wrapinstance(self.scope.qwidget(), Qt.QWidget)
             self.scope_win.setMinimumSize(800, 600)
 
         elif options.qtgui:
@@ -281,7 +281,7 @@ class app_top_block(gr.top_block, Qt.QMainWindow):
                 plottime=True,
                 plotconst=True
             )
-            self.scope_win = sip.wrapinstance(self.scope.pyqwidget(), Qt.QWidget)
+            self.scope_win = sip.wrapinstance(self.scope.qwidget(), Qt.QWidget)
             self.scope.set_update_time(1.0/10)
             self.scope_win.setMinimumSize(800, 600)
 
@@ -294,7 +294,7 @@ class app_top_block(gr.top_block, Qt.QMainWindow):
                 name="",
                 nconnections=1
             )
-            self.scope_win = sip.wrapinstance(self.scope.pyqwidget(), Qt.QWidget)
+            self.scope_win = sip.wrapinstance(self.scope.qwidget(), Qt.QWidget)
             self.scope.disable_legend()
             self.scope_win.setMinimumSize(800, 420)