diff --git a/src/vatom/Center.cpp b/src/vatom/Center.cpp
index 04cc8ce17039655055e74276e14982d2988e7628..58ddecc3c75e18900e35aa675af4e78c4d1f7225 100644
--- a/src/vatom/Center.cpp
+++ b/src/vatom/Center.cpp
@@ -31,7 +31,7 @@ namespace vatom{
 
 //+PLUMEDOC VATOM CENTER
 /*
-Calculate the center for a group of atoms, with arbitraty weights.
+Calculate the center for a group of atoms, with arbitrary weights.
 
 The computed
 center is stored as a virtual atom that can be accessed in