diff --git a/tomwer/gui/ftserie/__init__.py b/tomwer/gui/ftserie/__init__.py
index 379d2ee8240f5c08503f75a637e3034ec59f9915..80eec2a4e290eee0bbe85e2eb237763443aa0fe1 100644
--- a/tomwer/gui/ftserie/__init__.py
+++ b/tomwer/gui/ftserie/__init__.py
@@ -41,6 +41,8 @@ from tomwer.core.ftseries.ftseries import Ftseries
 class FtserieWidget(Ftseries, qt.QWidget):
     _sizeHint = qt.QSize(700, 600)
 
+    sigScanReady = qt.Signal(str)
+
     def __init__(self, dir=None, parent=None):
         """Widget which read the .hdf5 generated by octave and modify it.
         Then run a subprocess to call octave and run ftseries"""