diff --git a/tools/cli/installers/lib/custom/handler.js b/tools/cli/installers/lib/custom/handler.js
index c8aa52ee..8c730cf3 100644
--- a/tools/cli/installers/lib/custom/handler.js
+++ b/tools/cli/installers/lib/custom/handler.js
@@ -297,7 +297,7 @@ class CustomHandler {
     const agentFiles = await this.findFilesRecursively(sourceAgentsPath, ['.agent.yaml']);
 
     for (const agentFile of agentFiles) {
-      const relativePath = path.relative(sourceAgentsPath, agentFile);
+      const relativePath = path.relative(sourceAgentsPath, agentFile).split(path.sep).join('/');
       const targetDir = path.join(targetAgentsPath, path.dirname(relativePath));
 
       await fs.ensureDir(targetDir);
diff --git a/tools/cli/installers/lib/modules/manager.js b/tools/cli/installers/lib/modules/manager.js
index dbe280f7..1f523fba 100644
--- a/tools/cli/installers/lib/modules/manager.js
+++ b/tools/cli/installers/lib/modules/manager.js
@@ -871,7 +871,7 @@ class ModuleManager {
     for (const agentFile of agentFiles) {
       if (!agentFile.endsWith('.agent.yaml')) continue;
 
-      const relativePath = path.relative(sourceAgentsPath, agentFile);
+      const relativePath = path.relative(sourceAgentsPath, agentFile).split(path.sep).join('/');
       const targetDir = path.join(targetAgentsPath, path.dirname(relativePath));
 
       await fs.ensureDir(targetDir);