diff --git a/docs/manual/manual.mk b/docs/manual/manual.mk
index bcbedad572..d092d3fcfd 100644
--- a/docs/manual/manual.mk
+++ b/docs/manual/manual.mk
@@ -43,10 +43,10 @@ endef
 ################################################################################
 define GENDOC
 $(call GENDOC_INNER,$(1),xhtml,html,html,HTML,--xsltproc-opts "--stringparam toc.section.depth 4")
-$(call GENDOC_INNER,$(1),chunked,split-html,chunked,Split HTML,--xsltproc-opts "--stringparam toc.section.depth 4")
+$(call GENDOC_INNER,$(1),chunked,split-html,chunked,split HTML,--xsltproc-opts "--stringparam toc.section.depth 4")
 $(call GENDOC_INNER,$(1),pdf,pdf,pdf,PDF,--dblatex-opts "-P latex.output.revhistory=0")
-$(call GENDOC_INNER,$(1),text,txt,text,Text)
-$(call GENDOC_INNER,$(1),epub,epub,epub,EPUB)
+$(call GENDOC_INNER,$(1),text,txt,text,text)
+$(call GENDOC_INNER,$(1),epub,epub,epub,ePUB)
 clean: $(1)-clean
 $(1)-clean:
 	$(Q)$(RM) -rf $(O)/docs/$(1)