diff --git a/pkg/cluster/env.go b/pkg/cluster/env.go
index cf5b171..a6c4b89 100644
--- a/pkg/cluster/env.go
+++ b/pkg/cluster/env.go
@@ -117,7 +117,11 @@ func (m *Env) writeEnvVar(w io.Writer, value string, name string, args ...any) {
 	if name != "" {
 		value = strings.TrimSpace(value)
 
-		_, _ = fmt.Fprintf(w, "%s%s=%q\n", prefix, name, value)
+		if value == "" {
+			_, _ = fmt.Fprintf(w, "%s%s=\n", prefix, name)
+		} else {
+			_, _ = fmt.Fprintf(w, "%s%s=%q\n", prefix, name, value)
+		}
 	}
 }