diff --git a/doc/TclCommands.md b/doc/TclCommands.md
index 7e8f587..efd978e 100644
--- a/doc/TclCommands.md
+++ b/doc/TclCommands.md
@@ -19,7 +19,7 @@ global_placement
 
 ## Flow Control
 * __skip_initial_place__ : Skip the initial placement (BiCGSTAB solving) before Nesterov placement. IP improves HPWL by ~5% on large designs.
-* __incremental__ : Enable the incremental global placement. Users would need to tune other parameters with the pre-placed solutions. 
+* __incremental__ : Enable the incremental global placement. Users would need to tune other parameters (e.g. init_density_penalty) with the pre-placed solutions. 
 
 ## Tuning Parameters
 * __bin_grid_count__ : Set bin grid's count manually. Default: Defined by internal algorithm. [64,128,256,512,..., int]