diff --git a/src/internal/buildcfg/exp.go b/src/internal/buildcfg/exp.go
index 043d079cf649a..a9b29d6718c5c 100644
--- a/src/internal/buildcfg/exp.go
+++ b/src/internal/buildcfg/exp.go
@@ -56,6 +56,7 @@ func ParseGOEXPERIMENT(goos, goarch, goexp string) (flags, baseline goexperiment
 		RegabiWrappers: regabiSupported,
 		RegabiReflect:  regabiSupported,
 		RegabiArgs:     regabiSupported,
+		PacerRedesign:  true,
 	}
 
 	// Start with the statically enabled set of experiments.