diff --git a/bsimcmg_benchmark_test/gummel_n.sp b/bsimcmg_benchmark_test/gummel_n.sp
index cb1d501b5..1c3578768 100644
--- a/bsimcmg_benchmark_test/gummel_n.sp
+++ b/bsimcmg_benchmark_test/gummel_n.sp
@@ -14,6 +14,8 @@ vbulk bulk 0 dc=0.0
 
 
 * --- Transistor ---
+* FIXME, parameter LSP has a different default !!
+*  see commit for bsimcmg_body.include
 m1 drain gate source bulk 0 nmos1 TFIN=15n L=30n NFIN=10 NRS=1 NRD=1
 
 * --- DC Analysis ---