diff --git a/src/cmd/go/internal/work/exec.go b/src/cmd/go/internal/work/exec.go
index a68bdd6d29accc..ab9ce88c3ce535 100644
--- a/src/cmd/go/internal/work/exec.go
+++ b/src/cmd/go/internal/work/exec.go
@@ -289,7 +289,7 @@ func (b *Builder) buildActionID(a *Action) cache.ActionID {
 		magic := []string{
 			"GOCLOBBERDEADHASH",
 			"GOSSAFUNC",
-			"GO_SSA_PHI_LOC_CUTOFF",
+			"GOSSADIR",
 			"GOSSAHASH",
 		}
 		for _, env := range magic {