diff --git a/packages/cli/src/commands/__tests__/lint.test.ts b/packages/cli/src/commands/__tests__/lint.test.ts
index 240a547bc..54e0ac273 100644
--- a/packages/cli/src/commands/__tests__/lint.test.ts
+++ b/packages/cli/src/commands/__tests__/lint.test.ts
@@ -281,4 +281,15 @@ describe('lint', () => {
 
     expect(process.stderr.write).nthCalledWith(6, `Error #3: ${chalk.red('original exception')}\n`);
   });
+
+  it('writes output for dashed formats via --output.<format> (#2926)', async () => {
+    (formatOutput as jest.Mock).mockReturnValue('<formatted output>');
+
+    await run(
+      `lint --format github-actions --format code-climate --output.github-actions ga.txt --output.code-climate cc.json ./__fixtures__/empty-oas2-document.json`,
+    );
+    expect(writeOutput).toBeCalledTimes(2);
+    expect(writeOutput).toHaveBeenCalledWith('<formatted output>', 'ga.txt');
+    expect(writeOutput).toHaveBeenCalledWith('<formatted output>', 'cc.json');
+  });
 });
diff --git a/packages/cli/src/commands/lint.ts b/packages/cli/src/commands/lint.ts
index 2528c4a80..27b9a53fc 100644
--- a/packages/cli/src/commands/lint.ts
+++ b/packages/cli/src/commands/lint.ts
@@ -1,7 +1,7 @@
 import { DiagnosticSeverity, Dictionary } from '@stoplight/types';
 import { isPlainObject } from '@stoplight/json';
 import { getDiagnosticSeverity, IRuleResult } from '@stoplight/spectral-core';
-import { difference, isError, pick } from 'lodash';
+import { camelCase, difference, isError, pick } from 'lodash';
 import type { ReadStream } from 'tty';
 import type { CommandModule } from 'yargs';
 import * as process from 'process';
@@ -114,6 +114,22 @@ const lintCommand: CommandModule = {
           alias: 'o',
           description: `where to output results, can be a single file name, multiple "output.<format>" or missing to print to stdout`,
           type: 'string',
+          // yargs camel-cases dotted keys, so `--output.github-actions` becomes
+          // `githubActions` (and may duplicate the original). Re-key the object by
+          // the canonical format names so dashed formats line up with `--format`.
+          coerce(value: unknown): unknown {
+            if (!isPlainObject(value)) return value;
+            const raw = value as Dictionary<unknown>;
+            const normalized: Dictionary<unknown> = {};
+            for (const format of formatOptions) {
+              if (format in raw) {
+                normalized[format] = raw[format];
+              } else if (camelCase(format) in raw) {
+                normalized[format] = raw[camelCase(format)];
+              }
+            }
+            return normalized;
+          },
         },
         'stdin-filepath': {
           description: 'path to a file to pretend that stdin comes from',