diff --git a/package_linter.py b/package_linter.py
index 96da3dd..3930567 100755
--- a/package_linter.py
+++ b/package_linter.py
@@ -2756,6 +2756,11 @@ class Script(TestSuite):
                 "The --keep option of ynh_setup_source expects relative paths, not absolute path ... you do not need to prefix everything with '$final_path' in the --keep arg ..."
             )
 
+    @test()
+    def ynh_npm_global(self):
+        if self.containsregex(r"ynh_npm.*install.*global"):
+            yield Warning("Please don't install stuff on global scope with npm install --global é_è")
+
     @test()
     def ynh_add_fpm_config_deprecated_package_option(self):
         if self.containsregex(r"ynh_add_fpm_config .*package=.*"):