diff --git a/src/proto_alpha/lib_protocol/test/test_script_typed_ir_size.ml b/src/proto_alpha/lib_protocol/test/test_script_typed_ir_size.ml
index 26ab34703bd2a0e52c040ee8e4a1c4ba78676a99..e2c5cf3e877c97641969fdbdc678a40cf4fd51b1 100644
--- a/src/proto_alpha/lib_protocol/test/test_script_typed_ir_size.ml
+++ b/src/proto_alpha/lib_protocol/test/test_script_typed_ir_size.ml
@@ -367,7 +367,7 @@ module Tests = struct
     check_stats
       "value_size"
       ~expected_mean:(1., 0.2)
-      ~expected_stddev:(0., 0.2)
+      ~expected_stddev:(0., 0.25)
       ~expected_ratios:(1., 3.)
 
   let lambda_size nsamples =