diff --git a/src/sampling/sampling_tools.jl b/src/sampling/sampling_tools.jl
index 083c53dcd967389113a44e3cca42ae9c04a26371..90551e75f37a9118c806d39a919d72649bee5e61 100644
--- a/src/sampling/sampling_tools.jl
+++ b/src/sampling/sampling_tools.jl
@@ -3,7 +3,8 @@
 
 Generate warmup points for all the reactions in the model that
 are not fixed. Assumes you feed in a JuMP model that is already
-constrained i.e. the constrains are already applied into `cbm`.
+constrained i.e. the constrains are already applied into cbm.
+Note, extra constraints applied to ubs and lbs will have no effect.
 
 numstop (maximum value is 2*number of warmup points). Reduce this to prematurely 
 stop finding warmup points.