diff --git a/test/resolve/adapters/baseSourceAdapter.test.ts b/test/resolve/adapters/baseSourceAdapter.test.ts
index 55a7b4986..db5bfba20 100644
--- a/test/resolve/adapters/baseSourceAdapter.test.ts
+++ b/test/resolve/adapters/baseSourceAdapter.test.ts
@@ -8,6 +8,7 @@ import { join } from 'node:path';
 import { Messages, SfError } from '@salesforce/core';
 
 import { assert, expect } from 'chai';
+import { posixify } from '../../../src/utils/path';
 import { decomposed, mixedContentSingleFile, nestedTypes, xmlInFolder, document } from '../../mock';
 import { getComponent } from '../../../src/resolve/adapters/baseSourceAdapter';
 import { META_XML_SUFFIX } from '../../../src/common';
@@ -55,7 +56,7 @@ describe('BaseSourceAdapter', () => {
   it('should throw an error if a metadata xml file is forceignored', () => {
     const type = registry.getRegistry().types.apexclass;
     const path = join('path', 'to', type.directoryName, `My_Test.${type.suffix}${META_XML_SUFFIX}`);
-    const adapterWithIgnore = getComponent({ tree, registry, forceIgnore: new ForceIgnore('', `${path}`) });
+    const adapterWithIgnore = getComponent({ tree, registry, forceIgnore: new ForceIgnore('', posixify(path)) });
 
     assert.throws(
       () => adapterWithIgnore({ path, type }),
diff --git a/test/resolve/adapters/matchingContentSourceAdapter.test.ts b/test/resolve/adapters/matchingContentSourceAdapter.test.ts
index bace92ac3..ea4eab2f6 100644
--- a/test/resolve/adapters/matchingContentSourceAdapter.test.ts
+++ b/test/resolve/adapters/matchingContentSourceAdapter.test.ts
@@ -7,6 +7,7 @@
 import { join } from 'node:path';
 import { assert, expect } from 'chai';
 import { Messages, SfError } from '@salesforce/core';
+import { posixify } from '../../../src/utils/path';
 import { getMatchingContentComponent } from '../../../src/resolve/adapters/matchingContentSourceAdapter';
 import { matchingContentFile } from '../../mock';
 import { ForceIgnore, registry, RegistryAccess, SourceComponent, VirtualTreeContainer } from '../../../src';
@@ -57,7 +58,7 @@ describe('MatchingContentSourceAdapter', () => {
   describe(' forceignore', () => {
     it('Should throw an error if content file is forceignored', () => {
       const path = CONTENT_PATHS[0];
-      const forceIgnore = new ForceIgnore('', `${path}`);
+      const forceIgnore = new ForceIgnore('', `${posixify(path)}`);
       const adapter = getMatchingContentComponent({ registry: registryAccess, tree, forceIgnore });
       assert.throws(
         () => adapter({ path, type }),
diff --git a/test/resolve/adapters/mixedContentSourceAdapter.test.ts b/test/resolve/adapters/mixedContentSourceAdapter.test.ts
index 6e1b8778e..c0640f25a 100644
--- a/test/resolve/adapters/mixedContentSourceAdapter.test.ts
+++ b/test/resolve/adapters/mixedContentSourceAdapter.test.ts
@@ -7,6 +7,7 @@
 import { assert, expect, config } from 'chai';
 import { Messages, SfError } from '@salesforce/core';
 import { ensureString } from '@salesforce/ts-types';
+import { posixify } from '../../../src/utils/path';
 import { getMixedContentComponent } from '../../../src/resolve/adapters/mixedContentSourceAdapter';
 import { ForceIgnore, registry, RegistryAccess, SourceComponent, VirtualTreeContainer } from '../../../src';
 import {
@@ -44,7 +45,10 @@ describe('MixedContentSourceAdapter', () => {
       const adapter = getMixedContentComponent({
         registry: registryAccess,
         tree,
-        forceIgnore: new ForceIgnore('', mixedContentDirectory.MIXED_CONTENT_DIRECTORY_SOURCE_PATHS.join('\n')),
+        forceIgnore: new ForceIgnore(
+          '',
+          mixedContentDirectory.MIXED_CONTENT_DIRECTORY_SOURCE_PATHS.map(posixify).join('\n')
+        ),
       });
 
       const path = mixedContentDirectory.MIXED_CONTENT_DIRECTORY_SOURCE_PATHS[0];