diff --git a/contrib/debian/control b/contrib/debian/control
index bac14747f..844bb6526 100644
--- a/contrib/debian/control
+++ b/contrib/debian/control
@@ -10,8 +10,10 @@ Build-Depends: debhelper-compat (= 13),
  gettext,
  libpcre2-dev,
  rustc (>= 1.85) | rustc-web (>= 1.85) | rustc-1.85,
+ sphinx-doc,
 # Test dependencies
  locales-all,
+ man-db,
  python3
 # 4.6.2 is Debian 12/Ubuntu Noble 24.04; Ubuntu Jammy is 4.6.0.1
 Standards-Version: 4.6.2
diff --git a/fish.spec.in b/fish.spec.in
index 596a513e7..2aaf9725e 100644
--- a/fish.spec.in
+++ b/fish.spec.in
@@ -13,7 +13,10 @@ Source1:                %{name}_@VERSION@.orig-cargo-vendor.tar.xz
 BuildRequires:          cargo gettext gcc xz pcre2-devel
 BuildRequires:          rust >= 1.85
 # Packaging guidelines say to use a BuildRequires: rust-packaging, but it adds no value for our package
-
+BuildRequires:          /usr/bin/sphinx-build
+# OBS: add eg "FileProvides: /usr/bin/sphinx-build python3-sphinx python3-Sphinx" to project config
+BuildRequires:          /usr/bin/man
+# OBS: add eg "FileProvides: /usr/bin/man man-db man" to project config
 BuildRequires: cmake >= 3.15
 
 %if 0%{?suse_version}