diff --git a/contrib/microhttpd.tag b/contrib/microhttpd.tag
index 5ae125e0f..831e1c4e4 100644
--- a/contrib/microhttpd.tag
+++ b/contrib/microhttpd.tag
@@ -112,6 +112,66 @@
       <anchorfile>microhttpd.h</anchorfile>
       <arglist></arglist>
     </member>
+    <member kind="define">
+      <type>#define</type>
+      <name>MHD_HTTP_BAD_GATEWAY</name>
+      <anchorfile>microhttpd.h</anchorfile>
+      <arglist></arglist>
+    </member>
+    <member kind="define">
+      <type>#define</type>
+      <name>MHD_HTTP_GATEWAY_TIMEOUT</name>
+      <anchorfile>microhttpd.h</anchorfile>
+      <arglist></arglist>
+    </member>
+    <member kind="define">
+      <type>#define</type>
+      <name>MHD_HTTP_METHOD_NOT_ALLOWED</name>
+      <anchorfile>microhttpd.h</anchorfile>
+      <arglist></arglist>
+    </member>
+    <member kind="define">
+      <type>#define</type>
+      <name>MHD_HTTP_UNAUTHORIZED</name>
+      <anchorfile>microhttpd.h</anchorfile>
+      <arglist></arglist>
+    </member>
+    <member kind="define">
+      <type>#define</type>
+      <name>MHD_HTTP_PAYMENT_REQUIRED</name>
+      <anchorfile>microhttpd.h</anchorfile>
+      <arglist></arglist>
+    </member>
+    <member kind="define">
+      <type>#define</type>
+      <name>MHD_HTTP_NOT_IMPLEMENTED</name>
+      <anchorfile>microhttpd.h</anchorfile>
+      <arglist></arglist>
+    </member>
+    <member kind="define">
+      <type>#define</type>
+      <name>MHD_HTTP_NOT_ACCEPTABLE</name>
+      <anchorfile>microhttpd.h</anchorfile>
+      <arglist></arglist>
+    </member>
+    <member kind="define">
+      <type>#define</type>
+      <name>MHD_HTTP_ALREADY_REPORTED</name>
+      <anchorfile>microhttpd.h</anchorfile>
+      <arglist></arglist>
+    </member>
+    <member kind="define">
+      <type>#define</type>
+      <name>MHD_HTTP_EXPECTATION_FAILED</name>
+      <anchorfile>microhttpd.h</anchorfile>
+      <arglist></arglist>
+    </member>
+    <member kind="define">
+      <type>#define</type>
+      <name>MHD_HTTP_TOO_MANY_REQUESTS</name>
+      <anchorfile>microhttpd.h</anchorfile>
+      <arglist></arglist>
+    </member>
     <member kind="typedef">
       <type>int</type>
       <name>MHD_AccessHandlerCallback</name>
diff --git a/doc/doxygen/taler.doxy b/doc/doxygen/taler.doxy
index 9be18c49c..444e0f552 100644
--- a/doc/doxygen/taler.doxy
+++ b/doc/doxygen/taler.doxy
@@ -94,7 +94,7 @@ WARN_LOGFILE           =
 #---------------------------------------------------------------------------
 # configuration options related to the input files
 #---------------------------------------------------------------------------
-INPUT                  = ../../src ../../contrib ../../doc
+INPUT                  = ../../src
 INPUT_ENCODING         = UTF-8
 FILE_PATTERNS          = *.c \
                          *.cc \