diff --git a/share/apps.json b/share/apps.json
index 19dbd56a8..0ccf20419 100644
--- a/share/apps.json
+++ b/share/apps.json
@@ -2760,9 +2760,10 @@
 			"meta": { "generator": "^(?:RCMS|ReallyCMS)" }
 		},
 		"RDoc": {
-			"website": "rdoc.rubyforge.org",
+			"website": "github.com/RDoc/RDoc",
 			"cats": [ 4 ],
-			"html": [ "<link[^>]+href=\"[^\"]*rdoc-style\\.css", "Generated by <a[^>]+href=\"https?://rdoc\\.rubyforge\\.org[^>]+>RDoc</a> ([\\d.]*\\d)\\;version:\\1" ]
+			"html": [ "<link[^>]+href=\"[^\"]*rdoc-style\\.css", "Generated by <a[^>]+href=\"https?://rdoc\\.rubyforge\\.org[^>]+>RDoc</a> ([\\d.]*\\d)\\;version:\\1" ],
+			"implies": "Ruby"
 		},
 		"React": {
 			"website": "facebook.github.io/react",