diff --git a/doc/fix_balance.html b/doc/fix_balance.html
index febb14f59e..b9c295e1da 100644
--- a/doc/fix_balance.html
+++ b/doc/fix_balance.html
@@ -48,6 +48,8 @@ fix 2 all balance 1000 1.1 rcb
 </PRE>
 <P><B>Description:</B>
 </P>
+<P>IMPORTANT NOTE: The <I>rcb</I> style is not yet implemented.
+</P>
 <P>This command adjusts the size and shape of processor sub-domains
 within the simulation box, to attempt to balance the number of
 particles and thus the computational cost (load) evenly across
diff --git a/doc/fix_balance.txt b/doc/fix_balance.txt
index c39c9f3cff..321e1f7c91 100644
--- a/doc/fix_balance.txt
+++ b/doc/fix_balance.txt
@@ -36,6 +36,8 @@ fix 2 all balance 1000 1.1 rcb :pre
 
 [Description:]
 
+IMPORTANT NOTE: The {rcb} style is not yet implemented.
+
 This command adjusts the size and shape of processor sub-domains
 within the simulation box, to attempt to balance the number of
 particles and thus the computational cost (load) evenly across