diff --git a/spyder/widgets/projects/explorer.py b/spyder/widgets/projects/explorer.py
index 2c741bf4854..af5a67ef2ab 100644
--- a/spyder/widgets/projects/explorer.py
+++ b/spyder/widgets/projects/explorer.py
@@ -169,6 +169,7 @@ def delete(self, fnames=None):
 
 class ProjectExplorerWidget(QWidget):
     """Project Explorer"""
+    redirect_stdio = Signal(bool)
     sig_option_changed = Signal(str, object)
     sig_open_file = Signal(str)
 
@@ -261,9 +262,6 @@ def delete_project(self):
 # Tests
 #==============================================================================
 class ProjectExplorerTest(QWidget):
-
-    redirect_stdio = Signal(bool)
-
     def __init__(self, directory=None):
         QWidget.__init__(self)
         vlayout = QVBoxLayout()