diff --git a/option_parser/src/lib.rs b/option_parser/src/lib.rs
index 6be4bcbb1..cd7bbd488 100644
--- a/option_parser/src/lib.rs
+++ b/option_parser/src/lib.rs
@@ -226,6 +226,17 @@ impl OptionParser {
         self
     }
 
+    /// Registers multiple flag-style options that do not take a value.
+    ///
+    /// Equivalent to calling [`add_valueless`](Self::add_valueless) for each
+    /// element in the slice.
+    pub fn add_all_valueless(&mut self, options: &[&str]) -> &mut Self {
+        for option in options {
+            self.add_valueless(option);
+        }
+        self
+    }
+
     /// Returns the raw string value of an option, or `None` if the option was
     /// not set or if its value is an empty string (e.g. `key=`).
     ///
diff --git a/vmm/src/config.rs b/vmm/src/config.rs
index b3a35c8f8..d680c23d3 100644
--- a/vmm/src/config.rs
+++ b/vmm/src/config.rs
@@ -2141,10 +2141,7 @@ impl ConsoleConfig {
     pub fn parse(console: &str) -> Result<Self> {
         let mut parser = OptionParser::new();
         parser
-            .add_valueless("off")
-            .add_valueless("pty")
-            .add_valueless("tty")
-            .add_valueless("null")
+            .add_all_valueless(&["off", "pty", "tty", "null"])
             .add("file")
             .add("iommu")
             .add("socket");