diff --git a/tricco/cubulation_functions.py b/tricco/cubulation_functions.py
index 737556269672650f0af3fe6b259ac525b1cb4fca..ee4d1bbfbb23ff02464fd36bda1ca81555444989 100644
--- a/tricco/cubulation_functions.py
+++ b/tricco/cubulation_functions.py
@@ -203,7 +203,7 @@ def shift_coordinates (cube_coordinates, radius):
 
 
 def compute_connected_components(field_cube, connectivity = 'vertex'):
-    """"
+    """
     Compute connected components
     
         Input:
@@ -211,7 +211,7 @@ def compute_connected_components(field_cube, connectivity = 'vertex'):
             connectivity   string   use 'vertex' (default) or 'edge' connectivity
         Output:
             component_cube, 3d array containing the component indices
-    """"    
+    """    
     import sys
     # translate connectivity - string into input value for 3d connected component labeling
     if connectivity == 'edge':