diff --git a/src/options.json b/src/options.json
index 4ad07b19..ba1448e4 100644
--- a/src/options.json
+++ b/src/options.json
@@ -55,7 +55,14 @@
       ]
     },
     "importLoaders": {
-      "type": "number"
+      "anyOf": [
+        {
+          "type": "boolean"
+        },
+        {
+          "type": "number"
+        }
+      ]
     },
     "exportOnlyLocals": {
       "type": "boolean"
diff --git a/test/__snapshots__/errors.test.js.snap b/test/__snapshots__/errors.test.js.snap
index 5660fd3b..14050475 100644
--- a/test/__snapshots__/errors.test.js.snap
+++ b/test/__snapshots__/errors.test.js.snap
@@ -97,7 +97,9 @@ options.camelCase should match some schema in anyOf
 exports[`validation 13`] = `
 "CSS Loader Invalid Options
 
+options.importLoaders should be boolean
 options.importLoaders should be number
+options.importLoaders should match some schema in anyOf
 "
 `;
 
diff --git a/test/__snapshots__/modules-option.test.js.snap b/test/__snapshots__/modules-option.test.js.snap
index ec9aa4c1..cfbbe580 100644
--- a/test/__snapshots__/modules-option.test.js.snap
+++ b/test/__snapshots__/modules-option.test.js.snap
@@ -5195,3 +5195,38 @@ exports.locals = {
 `;
 
 exports[`modules composes should supports resolving: warnings 1`] = `Array []`;
+
+exports[`modules issue #286: errors 1`] = `Array []`;
+
+exports[`modules issue #286: module (evaluated) 1`] = `
+Array [
+  Array [
+    2,
+    ".a--red { color: red }
+",
+    "",
+  ],
+  Array [
+    1,
+    ".b--main { }
+",
+    "",
+  ],
+]
+`;
+
+exports[`modules issue #286: module 1`] = `
+"exports = module.exports = require(\\"../../../../src/runtime/api.js\\")(false);
+// imports
+exports.i(require(\\"./dep.css\\"), \\"\\");
+
+// module
+exports.push([module.id, \\".b--main { }\\\\n\\", \\"\\"]);
+
+// exports
+exports.locals = {
+	\\"main\\": \\"b--main \\" + require(\\"./dep.css\\").locals[\\"red\\"] + \\"\\"
+};"
+`;
+
+exports[`modules issue #286: warnings 1`] = `Array []`;
diff --git a/test/errors.test.js b/test/errors.test.js
index 41a805e7..09b602f5 100644
--- a/test/errors.test.js
+++ b/test/errors.test.js
@@ -73,6 +73,7 @@ it('validation', () => {
     validate({ camelCase: 'unknown' })
   ).toThrowErrorMatchingSnapshot();
 
+  expect(() => validate({ importLoaders: false })).not.toThrow();
   expect(() => validate({ importLoaders: 0 })).not.toThrow();
   expect(() => validate({ importLoaders: 1 })).not.toThrow();
   expect(() => validate({ importLoaders: 2 })).not.toThrow();
diff --git a/test/fixtures/modules/issue-286/dep.css b/test/fixtures/modules/issue-286/dep.css
new file mode 100644
index 00000000..442fcb11
--- /dev/null
+++ b/test/fixtures/modules/issue-286/dep.css
@@ -0,0 +1 @@
+.red { color: red }
diff --git a/test/fixtures/modules/issue-286/source.css b/test/fixtures/modules/issue-286/source.css
new file mode 100644
index 00000000..a0482c69
--- /dev/null
+++ b/test/fixtures/modules/issue-286/source.css
@@ -0,0 +1 @@
+.main { composes: red from './dep.css'; }
diff --git a/test/helpers.js b/test/helpers.js
index 831ada63..b555c944 100644
--- a/test/helpers.js
+++ b/test/helpers.js
@@ -40,6 +40,7 @@ function evaluated(output, modules, moduleId = 1) {
             'url',
             'url/node_modules',
             'modules/',
+            'modules/issue-286',
             'modules/node_modules',
             'modules/tests-cases/urls',
             'modules/tests-cases/comments',
@@ -74,9 +75,6 @@ function evaluated(output, modules, moduleId = 1) {
         }
 
         return 'nothing';
-      } else if (modules && module in modules) {
-        // Compatibility with old tests
-        return modules[module];
       }
       return `{${module}}`;
     });
@@ -138,6 +136,7 @@ const moduleConfig = (config) => {
                   : []
               ),
           },
+          config.additionalLoader ? config.additionalLoader : {},
           {
             test: /\.(png|jpg|gif|svg|eot|ttf|woff|woff2)$/,
             use: {
diff --git a/test/modules-option.test.js b/test/modules-option.test.js
index da7348e1..9d094ca0 100644
--- a/test/modules-option.test.js
+++ b/test/modules-option.test.js
@@ -53,4 +53,37 @@ describe('modules', () => {
     expect(stats.compilation.warnings).toMatchSnapshot('warnings');
     expect(stats.compilation.errors).toMatchSnapshot('errors');
   });
+
+  it(`issue #286`, async () => {
+    const config = {
+      loader: {
+        test: /source\.css$/,
+        options: {
+          importLoaders: false,
+          modules: true,
+          localIdentName: 'b--[local]',
+        },
+      },
+      additionalLoader: {
+        test: /dep\.css$/,
+        loader: path.resolve(__dirname, '../src/index.js'),
+        options: {
+          importLoaders: false,
+          modules: true,
+          localIdentName: 'a--[local]',
+        },
+      },
+    };
+    const testId = './modules/issue-286/source.css';
+    const stats = await webpack(testId, config);
+    const { modules } = stats.toJson();
+    const module = modules.find((m) => m.id === testId);
+
+    expect(module.source).toMatchSnapshot('module');
+    expect(evaluated(module.source, modules)).toMatchSnapshot(
+      'module (evaluated)'
+    );
+    expect(stats.compilation.warnings).toMatchSnapshot('warnings');
+    expect(stats.compilation.errors).toMatchSnapshot('errors');
+  });
 });