diff --git a/applications/test/rigidBodyDynamics/pendulumAndSpring b/applications/test/rigidBodyDynamics/pendulumAndSpring
index 95a25c42e3..549ad3c27c 100644
--- a/applications/test/rigidBodyDynamics/pendulumAndSpring
+++ b/applications/test/rigidBodyDynamics/pendulumAndSpring
@@ -29,18 +29,21 @@ bodies
         }
         outline
         (
-            (0 0.01 0)
-            (0.005 0.00866025 0)
-            (0.00866025 0.005 0)
-            (0.01 0 0)
-            (0.00866025 -0.005 0)
-            (0.005 -0.00866025 0)
-            (0 -0.01 0)
-            (-0.00866025 -0.005 0)
-            (-0.01 0 0)
-            (-0.00866025 0.005 0)
-            (-0.005 0.00866025 0)
-            (0 0.01 0)
+            (0 0.1 0)
+            (0.05 0.0866025 0)
+            (0.0866025 0.05 0)
+            (0.1 0 0)
+            (0.0866025 -0.05 0)
+            (0.05 -0.0866025 0)
+            (0 -0.1 0)
+            (0 -2.5 0)
+            (0 -0.1 0)
+            (-0.05 -0.0866025 0)
+            (-0.0866025 -0.05 0)
+            (-0.1 0 0)
+            (-0.0866025 0.05 0)
+            (-0.05 0.0866025 0)
+            (0 0.1 0)
         );
     }
 
@@ -52,21 +55,27 @@ bodies
         radius          0.01;
         centreOfMass    (0 0 0);
         transform       (1 0 0 0 1 0 0 0 1) (0 -5 0);
-        mergeWith       M;
+        joint
+        {
+            type            rigid;
+        }
         outline
         (
-            (0 0.01 0)
-            (0.005 0.00866025 0)
-            (0.00866025 0.005 0)
-            (0.01 0 0)
-            (0.00866025 -0.005 0)
-            (0.005 -0.00866025 0)
-            (0 -0.01 0)
-            (-0.00866025 -0.005 0)
-            (-0.01 0 0)
-            (-0.00866025 0.005 0)
-            (-0.005 0.00866025 0)
-            (0 0.01 0)
+            (0 2.5 0)
+            (0 0.1 0)
+            (0.05 0.0866025 0)
+            (0.0866025 0.05 0)
+            (0.1 0 0)
+            (0.0866025 -0.05 0)
+            (0.05 -0.0866025 0)
+            (0 -0.1 0)
+            (-0.05 -0.0866025 0)
+            (-0.0866025 -0.05 0)
+            (-0.1 0 0)
+            (-0.0866025 0.05 0)
+            (-0.05 0.0866025 0)
+            (0 0.1 0)
+            (0 2.5 0)
         );
     }
 }
diff --git a/applications/test/rigidBodyDynamics/pendulumAndSpring.gnuplot b/applications/test/rigidBodyDynamics/pendulumAndSpring.gnuplot
index a2ccba71da..8d89820ba9 100644
--- a/applications/test/rigidBodyDynamics/pendulumAndSpring.gnuplot
+++ b/applications/test/rigidBodyDynamics/pendulumAndSpring.gnuplot
@@ -2,7 +2,7 @@
 # =========                 |
 # \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
 #  \\    /   O peration     | Website:  https://openfoam.org
-#   \\  /    A nd           | Copyright (C) 2016-2018 OpenFOAM Foundation
+#   \\  /    A nd           | Copyright (C) 2016-2023 OpenFOAM Foundation
 #    \\/     M anipulation  |
 #------------------------------------------------------------------------------
 # License
@@ -48,6 +48,6 @@ set output "pendulumAndSpring.eps"
 
 plot \
     "pendulumAndSpring.dat" u 1:2 w l t "x", \
-    "pendulumAndSpring.dat" u 1:(57.29578*$2) w l axes x1y2 t "omega"
+    "pendulumAndSpring.dat" u 1:(180/pi*$3) w l axes x1y2 t "omega"
 
 #------------------------------------------------------------------------------