diff --git a/bin/postprocessing/l2error.py b/bin/postprocessing/l2error.py
index 6fe70998fe2e2e70949d693e1a9adb9bcfad6c2c..5f27863785e15b718975bac271bd66f2f5aef109 100644
--- a/bin/postprocessing/l2error.py
+++ b/bin/postprocessing/l2error.py
@@ -13,9 +13,9 @@ group1.add_argument('-x1', '--xData1', type=int, help='Column index of x data in
 group1.add_argument('-x1Name', '--xDataName1', type=str, help='Name x data in reference')
 group2 = parser.add_mutually_exclusive_group(required=True)
 group2.add_argument('-x2', '--xData2', type=int, help='Column index of x data in newSolution')
-group2.add_argument('-x2Name', '--xDataName2', type=str, help='Name x data in reference')
+group2.add_argument('-x2Name', '--xDataName2', type=str, help='Name x data in newSolution')
 group3 = parser.add_mutually_exclusive_group(required=True)
-group3.add_argument('-y1', '--yData1', type=int, help='Column index of y data in newSolution')
+group3.add_argument('-y1', '--yData1', type=int, help='Column index of y data in reference')
 group3.add_argument('-y1Name', '--yDataName1', type=str, help='Name y data in reference')
 group4 = parser.add_mutually_exclusive_group(required=True)
 group4.add_argument('-y2', '--yData2', type=int, help='Column index of y data in newSolution')