diff --git a/doc/MODULE.md b/doc/MODULE.md
index 7a46a64d..f31ce825 100644
--- a/doc/MODULE.md
+++ b/doc/MODULE.md
@@ -102,7 +102,7 @@ The key will become an environment variable accessible inside the module or via
 Example:
 
 ```bash
-$ pm2 set server-monitoring.security true
+$ pm2 set 'server-monitoring.security' true
 ```
 
 Once you start the module called 'server-monitoring' you will be able to access to these custom variables:
diff --git a/test/bash/module.sh b/test/bash/module.sh
index d3835c89..9d90551a 100644
--- a/test/bash/module.sh
+++ b/test/bash/module.sh
@@ -16,6 +16,8 @@ $pm2 kill
 #
 #
 
+$pm2 set 'pm2-probe.config1xxx' true
+
 $pm2 install pm2-probe
 spec "Should install a module"
 should 'should app be online' 'online' 1
@@ -23,6 +25,14 @@ should 'should app be online' 'online' 1
 ls ~/.pm2/node_modules/pm2-probe
 spec "Module should be installed"
 
+#
+# Should configuration variable be present two times
+# one time in the raw env, and a second time prefixed with the module name
+#
+OUT=`$pm2 prettylist | grep -o "config1xxx" | wc -l`
+[ $OUT -eq 2 ] || fail "$1"
+success "$1"
+
 $pm2 update
 spec "Should update succesfully"
 should 'and module still online' 'online' 1
@@ -59,11 +69,3 @@ ispec "Module should be installed"
 
 $pm2 update
 should 'should module not be online' 'online' 0
-
-#
-# Install local module
-#
-
-#
-# Watch feature
-#