diff --git a/ax_init_standard_project.m4 b/ax_init_standard_project.m4
index 5973fcf..cbfeb7c 100644
--- a/ax_init_standard_project.m4
+++ b/ax_init_standard_project.m4
@@ -555,8 +555,6 @@ AC_DEFUN([AX_USE_DOXYGEN], [
   if test -f "${srcdir}/doc/plantuml.jar"; then
     PLANTUML="doc/plantuml.jar"
     AX_SUBST(PLANTUML)
-  else
-    AC_MSG_ERROR([NOT FOUND ac_top_srcdir=${ac_top_srcdir} top_srcdir=${top_srcdir} srcdir=${srcdir}])
   fi
   AM_CONDITIONAL(HAVE_PLANTUML, test -n "$PLANTUML")
   PDF_DOC=${PACKAGE_NAME}-${PACKAGE_VERSION}.pdf
diff --git a/bootstrap.sh b/bootstrap.sh
index 9afd474..2b268a6 100755
--- a/bootstrap.sh
+++ b/bootstrap.sh
@@ -1008,7 +1008,7 @@ if testtag AX_USE_DOXYGEN; then
         doxyadd ALIASES '"readme=@README_HTML@"'
         doxyadd ALIASES '"author=<a href="@AUTHOR_URL@" target="_blank">@AUTHOR_NAME@</a>"'
         if testtag AX_USE_PLANTUML; then
-            doxyadd ALIASES '"startuml{1}=\\image html \\1\\n\\image latex \\1\\n\\if DontIgnorePlantUMLCode"'
+            doxyadd ALIASES '"startuml{1}=@image html \\1\\n@image latex \\1\\n\\if DontIgnorePlantUMLCode"'
             doxyadd ALIASES '"enduml=\\endif"'
             doxyadd IMAGE_PATH '"gen-uml-images"'
         fi
diff --git a/doc/doxyfile.in b/doc/doxyfile.in
index 6d2b6c9..599373d 100644
--- a/doc/doxyfile.in
+++ b/doc/doxyfile.in
@@ -230,7 +230,7 @@ TAB_SIZE               = 2
 
 ALIASES                = "id=\par File-ID\n"
 ALIASES += "enduml=\endif"
-ALIASES += "startuml{1}=\image html \1\n\image latex \1\n\if DontIgnorePlantUMLCode"
+ALIASES += "startuml{1}=@image html \1\n@image latex \1\n\if DontIgnorePlantUMLCode"
 ALIASES += "author=<a href="@AUTHOR_URL@" target="_blank">@AUTHOR_NAME@</a>"
 ALIASES += "readme=@README_HTML@"
 ALIASES += "description=@DESCRIPTION@"
diff --git a/nodejs/doc/documentation.dox b/nodejs/doc/documentation.dox
index f52fe80..af1c4d3 100644
--- a/nodejs/doc/documentation.dox
+++ b/nodejs/doc/documentation.dox
@@ -97,6 +97,9 @@
 
     @section overview System Overview
 
+    @image html overview.png
+    @image latex overview.png
+    
     @startuml{overview.png}
       interface "user"
       interface "user" as otheruser