Grunt-wiredep does not insert js libs with a dot in lib folder name

Question

grunt-wiredep at runtime

grunt wiredep: target

returns tasks:

leaflet.markercluster was not injected in your file. Please go take a look in "/home/rd/java/workspace/test-express/bower_components/leaflet.markercluster" for the file you need, then manually include it in your file. 

Same behavior for other libraries with dots in the folder name. Other libraries are entered correctly in the hmtl and jade files. Is there any workaround?