diff --git a/tests/script/general/parser/groupby.sim b/tests/script/general/parser/groupby.sim
index 240e0a6b9dfbb1d1f831b55f969c7f3dead75240..9baf028bc8233c0fd6c3ada9392bca717270b3be 100644
--- a/tests/script/general/parser/groupby.sim
+++ b/tests/script/general/parser/groupby.sim
@@ -594,8 +594,8 @@ if $data10 != @{slop:0.000000, intercept:1.000000}@ then
   return -1
 endi
 
-if $data90 != @{slop:0.000000, intercept:90.000000}@ then
-  print " data90 expect: {slop:0.000000, intercept:90.000000} real:"$data90
+if $data90 != @{slop:0.000000, intercept:17.000000}@ then
+  print " data90 expect: {slop:0.000000, intercept:17.000000} real:"$data90
   return -1
 endi