diff --git a/README.md b/README.md
index 24572d9..6f7f205 100644
--- a/README.md
+++ b/README.md
@@ -89,7 +89,7 @@ This role has multiple variables. The defaults for all these variables are the f
     # Default is mainline.
     branch: mainline
 
-    # Install nginscript, perl, waf, geoip, image-filter, rtmp and/or xslt modules.
+    # Install nginscript, perl, waf (NGINX Plus only), geoip, image-filter, rtmp and/or xslt modules.
     # Default is false.
     modules:
       njs: false
diff --git a/defaults/main.yml b/defaults/main.yml
index 17331f0..168aaf0 100644
--- a/defaults/main.yml
+++ b/defaults/main.yml
@@ -9,7 +9,7 @@ type: opensource
 # Default is mainline.
 branch: mainline
 
-# Install nginscript, perl, waf, geoip, image-filter, rtmp and/or xslt modules.
+# Install nginscript, perl, waf (NGINX Plus only), geoip, image-filter, rtmp and/or xslt modules.
 # Default is false.
 modules:
   njs: false