diff --git a/ensemble_md/tests/data/coord_swap/output_D.gro b/ensemble_md/tests/data/coord_swap/output_D.gro
index 6955912..3697984 100644
--- a/ensemble_md/tests/data/coord_swap/output_D.gro
+++ b/ensemble_md/tests/data/coord_swap/output_D.gro
@@ -21,9 +21,9 @@ Protein in water
     1J2K    H11   19   4.7855296   5.1634459   2.6281769   0.000   0.000   0.000
     1J2K    H12   20   4.8469658   5.2264252   2.4736989   0.000   0.000   0.000
     1J2K    H13   21   4.9016318   5.2935543   2.6352797   0.000   0.000   0.000
-    1J2K   HV14   21   5.0237503   5.3428926   2.6540799   0.000   0.000   0.000
-    1J2K   HV15   22   4.8513546   5.4049191   2.6414304   0.000   0.000   0.000
-    1J2K   HV16   23   4.9280410   5.2066817   2.8707309   0.000   0.000   0.000
-    1J2K   HV17   24   4.9172225   5.3824968   2.8867180   0.000   0.000   0.000
-    1J2K   HV18   25   4.7816763   5.2949572   2.8441288   0.000   0.000   0.000
+    1J2K   HV14   22   5.0237503   5.3428926   2.6540799   0.000   0.000   0.000
+    1J2K   HV15   23   4.8513546   5.4049191   2.6414304   0.000   0.000   0.000
+    1J2K   HV16   24   4.9280410   5.2066817   2.8707309   0.000   0.000   0.000
+    1J2K   HV17   25   4.9172225   5.3824968   2.8867180   0.000   0.000   0.000
+    1J2K   HV18   26   4.7816763   5.2949572   2.8441288   0.000   0.000   0.000
    6.81420   6.81420   4.81837   0.00000   0.00000   0.00000   0.00000   3.40710   3.40710