diff --git a/modules/java/gen_javadoc.py b/modules/java/gen_javadoc.py
index cddde1499f..414be42fa4 100644
--- a/modules/java/gen_javadoc.py
+++ b/modules/java/gen_javadoc.py
@@ -28,7 +28,7 @@ class JavadocGenerator(object):
     def document(self, infile, outfile):
         inf = open(infile, "rt")
         outf = open(outfile, "wt")
-        module = os.path.splitext(os.path.basename(infile))[0]
+        module = os.path.splitext(os.path.basename(infile))[0].split("+")[0]
         if module not in allmodules:
             module = "unknown"
         try: