diff --git a/harper-wasm/src/lib.rs b/harper-wasm/src/lib.rs
index 43456c40..c3f20ddd 100644
--- a/harper-wasm/src/lib.rs
+++ b/harper-wasm/src/lib.rs
@@ -5,7 +5,7 @@ use std::sync::Arc;
 
 use harper_core::language_detection::is_doc_likely_english;
 use harper_core::linting::{LintGroup, LintGroupConfig, Linter as _};
-use harper_core::parsers::{IsolateEnglish, Markdown, PlainEnglish};
+use harper_core::parsers::{IsolateEnglish, Markdown, Parser, PlainEnglish};
 use harper_core::{remove_overlaps, Document, FstDictionary, FullDictionary, Lrc};
 use serde::{Deserialize, Serialize};
 use wasm_bindgen::prelude::wasm_bindgen;
@@ -42,6 +42,12 @@ make_serialize_fns_for!(Suggestion);
 make_serialize_fns_for!(Lint);
 make_serialize_fns_for!(Span);
 
+#[wasm_bindgen]
+pub enum Language {
+    Plain,
+    Markdown,
+}
+
 #[wasm_bindgen]
 pub struct Linter {
     lint_group: LintGroup<Arc<FstDictionary>>,
@@ -112,16 +118,17 @@ impl Linter {
     }
 
     /// Perform the configured linting on the provided text.
-    pub fn lint(&mut self, text: String) -> Vec<Lint> {
+    pub fn lint(&mut self, text: String, language: Language) -> Vec<Lint> {
         let source: Vec<_> = text.chars().collect();
         let source = Lrc::new(source);
 
-        // TODO: Have a way to configure the markdown parser
-        let document = Document::new_from_vec(
-            source.clone(),
-            &Markdown::default(),
-            &FullDictionary::curated(),
-        );
+        let parser: Box<dyn Parser> = match language {
+            Language::Plain => Box::new(PlainEnglish),
+            // TODO: Have a way to configure the Markdown parser
+            Language::Markdown => Box::new(Markdown::default()),
+        };
+
+        let document = Document::new_from_vec(source.clone(), &parser, &FullDictionary::curated());
 
         let mut lints = self.lint_group.lint(&document);
 
diff --git a/packages/harper.js/src/Linter.ts b/packages/harper.js/src/Linter.ts
index 6febf738..e404a5b8 100644
--- a/packages/harper.js/src/Linter.ts
+++ b/packages/harper.js/src/Linter.ts
@@ -1,5 +1,5 @@
 import type { Lint, Span, Suggestion } from 'wasm';
-import { LintConfig } from './main';
+import { LintConfig, LintOptions } from './main';
 
 /** An interface for an object that can perform linting actions. */
 export default interface Linter {
@@ -9,7 +9,7 @@ export default interface Linter {
 	setup(): Promise<void>;
 
 	/** Lint the provided text. */
-	lint(text: string): Promise<Lint[]>;
+	lint(text: string, options?: LintOptions): Promise<Lint[]>;
 
 	/** Apply a suggestion to the given text, returning the transformed result. */
 	applySuggestion(text: string, suggestion: Suggestion, span: Span): Promise<string>;
diff --git a/packages/harper.js/src/LocalLinter.ts b/packages/harper.js/src/LocalLinter.ts
index 3aa9a016..69c2e771 100644
--- a/packages/harper.js/src/LocalLinter.ts
+++ b/packages/harper.js/src/LocalLinter.ts
@@ -1,7 +1,8 @@
 import type { Lint, Span, Suggestion, Linter as WasmLinter } from 'wasm';
+import { Language } from 'wasm';
 import Linter from './Linter';
 import loadWasm from './loadWasm';
-import { LintConfig } from './main';
+import { LintConfig, LintOptions } from './main';
 
 /** A Linter that runs in the current JavaScript context (meaning it is allowed to block the event loop).  */
 export default class LocalLinter implements Linter {
@@ -18,12 +19,15 @@ export default class LocalLinter implements Linter {
 
 	async setup(): Promise<void> {
 		await this.initialize();
-		this.inner!.lint('');
+		this.inner!.lint('', Language.Plain);
 	}
 
-	async lint(text: string): Promise<Lint[]> {
+	async lint(text: string, options?: LintOptions): Promise<Lint[]> {
 		await this.initialize();
-		const lints = this.inner!.lint(text);
+		const lints = this.inner!.lint(
+			text,
+			options?.language === 'plaintext' ? Language.Plain : Language.Markdown
+		);
 
 		return lints;
 	}
diff --git a/packages/harper.js/src/WorkerLinter/index.ts b/packages/harper.js/src/WorkerLinter/index.ts
index b83da95a..bbaa23c9 100644
--- a/packages/harper.js/src/WorkerLinter/index.ts
+++ b/packages/harper.js/src/WorkerLinter/index.ts
@@ -3,7 +3,7 @@ import type { Lint, Suggestion, Span } from 'wasm';
 import Linter from '../Linter';
 import Worker from './worker.js?worker&inline';
 import { getWasmUri } from '../loadWasm';
-import { LintConfig } from '../main';
+import { LintConfig, LintOptions } from '../main';
 
 /** The data necessary to complete a request once the worker has responded. */
 type RequestItem = {
@@ -61,8 +61,8 @@ export default class WorkerLinter implements Linter {
 		return this.rpc('setup', []);
 	}
 
-	lint(text: string): Promise<Lint[]> {
-		return this.rpc('lint', [text]);
+	lint(text: string, options?: LintOptions): Promise<Lint[]> {
+		return this.rpc('lint', [text, options]);
 	}
 
 	applySuggestion(text: string, suggestion: Suggestion, span: Span): Promise<string> {
diff --git a/packages/harper.js/src/main.ts b/packages/harper.js/src/main.ts
index aa556afe..86afb28d 100644
--- a/packages/harper.js/src/main.ts
+++ b/packages/harper.js/src/main.ts
@@ -10,3 +10,9 @@ export type { Linter, Lint, Span, Suggestion };
 /** A linting rule configuration dependent on upstream Harper's available rules.
  * This is a record, since you shouldn't hard-code the existence of any particular rules and should generalize based on this struct. */
 export type LintConfig = Record<string, boolean | undefined>;
+
+/** The option used to configure the parser for an individual linting operation. */
+export type LintOptions = {
+	/** The markup language that is being passed. Defaults to `markdown`. */
+	language?: 'plaintext' | 'markdown';
+};