diff --git a/runsc/main.go b/runsc/main.go
index c30b29b81..44d30768f 100644
--- a/runsc/main.go
+++ b/runsc/main.go
@@ -179,10 +179,6 @@ func main() {
 
 	if *debugLogFD > -1 {
 		f := os.NewFile(uintptr(*debugLogFD), "debug log file")
-		// Dup f to stderr so we capture stack traces on panic.
-		if err := syscall.Dup2(int(f.Fd()), int(os.Stderr.Fd())); err != nil {
-			cmd.Fatalf("error dup'ing fd %d to stderr: %v", f.Fd(), err)
-		}
 		e = log.MultiEmitter{e, log.GoogleEmitter{&log.Writer{Next: f}}}
 	} else if *debugLogDir != "" {
 		if err := os.MkdirAll(*debugLogDir, 0775); err != nil {
@@ -193,10 +189,6 @@ func main() {
 		if err != nil {
 			cmd.Fatalf("error opening debug log file in %q: %v", *debugLogDir, err)
 		}
-		// Dup f to stderr so we capture stack traces on panic.
-		if err := syscall.Dup2(int(f.Fd()), int(os.Stderr.Fd())); err != nil {
-			cmd.Fatalf("error dup'ing fd %d to stderr: %v", f.Fd(), err)
-		}
 		e = log.MultiEmitter{e, log.GoogleEmitter{&log.Writer{Next: f}}}
 	}