diff --git a/pyqtgraph/functions.py b/pyqtgraph/functions.py
index 09c2fea6..b5c7b0d5 100644
--- a/pyqtgraph/functions.py
+++ b/pyqtgraph/functions.py
@@ -1312,6 +1312,7 @@ def arrayToQPath(x, y, connect='all'):
         connect[:,0] = 1
         connect[:,1] = 0
         connect = connect.flatten()
+        arr[1:-1]['c'] = connect
     elif connect == 'finite':
         connect = np.isfinite(x) & np.isfinite(y)
         arr[1:-1]['c'] = connect