diff --git a/debian/changelog b/debian/changelog
index a863913..fb45711 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -8,6 +8,7 @@
   * Rules-Requires-Root: no (routine-update)
   * Use secure URI in Homepage field.
   * Set upstream metadata fields: Bug-Database, Bug-Submit.
+  * Build-Depends: doxygen
 
  -- Andreas Tille <tille@debian.org>  Wed, 27 Jan 2021 17:32:34 +0100
 
diff --git a/debian/control b/debian/control
index 4f17d7e..e341fe1 100644
--- a/debian/control
+++ b/debian/control
@@ -3,7 +3,8 @@
 Uploaders: Andreas Tille <tille@debian.org>
 Section: science
 Priority: optional
-Build-Depends: debhelper-compat (= 13)
+Build-Depends: debhelper-compat (= 13),
+               doxygen
 Standards-Version: 4.5.1
 Vcs-Browser: https://salsa.debian.org/med-team/librandom123
 Vcs-Git: https://salsa.debian.org/med-team/librandom123.git