diff --git a/doc/src/fix_lb_fluid.rst b/doc/src/fix_lb_fluid.rst
index d0de406156..0191f14b1c 100644
--- a/doc/src/fix_lb_fluid.rst
+++ b/doc/src/fix_lb_fluid.rst
@@ -8,7 +8,7 @@ Syntax
 
 .. parsed-literal::
 
-   fix ID group-ID lb/fluid nevery LBtype viscosity density keyword values ...
+   fix ID group-ID lb/fluid nevery viscosity density keyword values ...
 
 * ID, group-ID are documented in :doc:`fix <fix>` command
 * lb/fluid = style name of this fix command