diff --git a/src/cmd/compile/internal/escape/escape.go b/src/cmd/compile/internal/escape/escape.go
index bd80fc5832..be02f1b6b0 100644
--- a/src/cmd/compile/internal/escape/escape.go
+++ b/src/cmd/compile/internal/escape/escape.go
@@ -130,6 +130,7 @@ func Batch(fns []*ir.Func, recursive bool) {
 
 	var b batch
 	b.heapLoc.escapes = true
+	b.blankLoc.transient = true
 
 	// Construct data-flow graph from syntax trees.
 	for _, fn := range fns {