diff --git a/builder.go b/builder.go
index 8bfff23..51c14b6 100644
--- a/builder.go
+++ b/builder.go
@@ -110,7 +110,10 @@ func (b Builder) Build(ctx context.Context, outputFile string) error {
 	cmd := buildEnv.newCommand("go", "build",
 		"-o", absOutputFile,
 	)
-	if !b.Debug {
+	if b.Debug {
+		// support dlv
+		cmd.Args = append(cmd.Args, "-gcflags", "all=-N -l")
+	} else {
 		cmd.Args = append(cmd.Args,
 			"-ldflags", "-w -s", // trim debug symbols
 			"-trimpath",