diff --git a/README.md b/README.md
index 603211e7..4c8b8bbe 100644
--- a/README.md
+++ b/README.md
@@ -1591,8 +1591,9 @@ class CssModulesJsonPlugin {
           // Make path to be relative to `context` (your project root)
           Object.fromEntries(
             Object.entries(allExportsJson).map((key) => {
-              // eslint-disable-next-line no-param-reassign
-              key[0] = path.relative(compiler.context, key[0]);
+              key[0] = path
+                .relative(compiler.context, key[0])
+                .replace(/\\/g, "/");
 
               return key;
             }),
diff --git a/test/helpers/get-json.js b/test/helpers/get-json.js
index 90c13eef..60ab2291 100644
--- a/test/helpers/get-json.js
+++ b/test/helpers/get-json.js
@@ -125,7 +125,9 @@ class CssModulesJsonPlugin {
           Object.fromEntries(
             Object.entries(allExportsJson).map((key) => {
               // eslint-disable-next-line no-param-reassign
-              key[0] = path.relative(compiler.context, key[0]);
+              key[0] = path
+                .relative(compiler.context, key[0])
+                .replace(/\\/g, "/");
 
               return key;
             }),