src/cmd/trace/v2/pprof.go | 2 +-

diff --git a/src/cmd/trace/v2/pprof.go b/src/cmd/trace/v2/pprof.go
index 05895eda3dee8f87f13bce35115999ebf3ef2d49..43b0257fc0fc8808a0434c10f594f43d0a1dda11 100644
--- a/src/cmd/trace/v2/pprof.go
+++ b/src/cmd/trace/v2/pprof.go
@@ -48,7 +48,7 @@ // If the id string is empty, returns nil without an error.
 func pprofMatchingGoroutines(name string, t *parsedTrace) (map[tracev2.GoID][]interval, error) {
 	res := make(map[tracev2.GoID][]interval)
 	for _, g := range t.summary.Goroutines {
-		if g.Name != name {
+		if name != "" && g.Name != name {
 			continue
 		}
 		endTime := g.EndTime