diff --git a/doc/src/fix_nh.txt b/doc/src/fix_nh.txt
index 0938509b45..c1cc3e560a 100644
--- a/doc/src/fix_nh.txt
+++ b/doc/src/fix_nh.txt
@@ -466,16 +466,6 @@ to undergo a slow random walk. This can be mitigated by resetting
 the momentum at infrequent intervals using the
 "fix momentum"_fix_momentum.html command.
 
-NOTE: This implementation has been shown to conserve linear momentum
-up to machine precision under NVT dynamics. Under NPT dynamics,
-for a system with zero initial total linear momentum, the total
-momentum fluctuates close to zero. It may occasionally undergo brief
-excursions to non-negligible values, before returning close to zero.
-Over long simulations, this has the effect of causing the center-of-mass
-to undergo a slow random walk. This can be mitigated by resetting
-the momentum at infrequent intervals using the
-"fix momentum"_fix_momentum.html command.
-
 :line
 
 The fix npt and fix nph commands can be used with rigid bodies or