diff --git a/PyQt5-stubs/QtCore.pyi b/PyQt5-stubs/QtCore.pyi
index c01f7772..5d3f73c5 100644
--- a/PyQt5-stubs/QtCore.pyi
+++ b/PyQt5-stubs/QtCore.pyi
@@ -36,6 +36,8 @@ class pyqtSignal:  # add methods
 
 
 class pyqtBoundSignal:
+    signal = ... # type: str
+
     def emit(self, *args: typing.Any) -> None: ...
 
 # Convenient type aliases.