diff --git a/configure.ac b/configure.ac
--- a/configure.ac
+++ b/configure.ac
@@ -1197,6 +1197,7 @@
 AC_SUBST(QR_LIBS)
 AC_CONFIG_FILES([Makefile src/Makefile doc/man/Makefile share/setup.nsi share/qt/Info.plist test/config.ini])
 AC_CONFIG_FILES([contrib/devtools/split-debug.sh],[chmod +x contrib/devtools/split-debug.sh])
+AC_CONFIG_FILES([doc/Doxyfile])
 AC_CONFIG_FILES([src/config/version.h])
 AC_CONFIG_LINKS([test/functional/test_runner.py:test/functional/test_runner.py])
 AC_CONFIG_LINKS([test/util/bitcoin-util-test.py:test/util/bitcoin-util-test.py])
diff --git a/doc/Doxyfile b/doc/Doxyfile.in
rename from doc/Doxyfile
rename to doc/Doxyfile.in
--- a/doc/Doxyfile
+++ b/doc/Doxyfile.in
@@ -38,7 +38,7 @@
 # could be handy for archiving the generated documentation or if some version
 # control system is used.
 
-PROJECT_NUMBER         = 0.19.10
+PROJECT_NUMBER         = @PACKAGE_VERSION@
 
 # Using the PROJECT_BRIEF tag one can provide an optional one line description
 # for a project that appears at the top of each page and should give viewer a
diff --git a/doc/developer-notes.md b/doc/developer-notes.md
--- a/doc/developer-notes.md
+++ b/doc/developer-notes.md
@@ -158,7 +158,7 @@
 
 To build doxygen locally to test changes to the Doxyfile or visualize your comments before landing changes:
 ```
-# at the project root, call:
+# In the build directory, call:
 doxygen doc/Doxyfile
 # output goes to doc/doxygen/html/
 ```
diff --git a/doc/release-process.md b/doc/release-process.md
--- a/doc/release-process.md
+++ b/doc/release-process.md
@@ -51,7 +51,6 @@
 9. Notify maintainers of Ubuntu PPA, AUR, and Docker images to build their packages.
 
 10. Increment version number in:
-    - doc/Doxyfile
     - doc/release-notes.md (and copy existing one to versioned doc/release-notes/*.md)
     - configure.ac
     - src/config/CMakeLists.txt