diff --git a/pyqtgraph/graphicsItems/InfiniteLine.py b/pyqtgraph/graphicsItems/InfiniteLine.py
index c64a4684..94555a90 100644
--- a/pyqtgraph/graphicsItems/InfiniteLine.py
+++ b/pyqtgraph/graphicsItems/InfiniteLine.py
@@ -26,7 +26,7 @@ class InfiniteLine(GraphicsObject):
     sigDragged(self)
     sigPositionChangeFinished(self)
     sigPositionChanged(self)
-    sigclicked(self, ev)
+    sigClicked(self, ev)
     =============================== ===================================================
     """