diff --git a/debian/control b/debian/control
index 1236ecb..f11c28b 100644
--- a/debian/control
+++ b/debian/control
@@ -42,6 +42,7 @@ Build-Depends: debhelper-compat (= 13),
  liblapack-dev,
  libcurl4-gnutls-dev | libcurl-dev,
  libexpat1-dev,
+ libminizip-dev,
  libomp-dev,
 # Should be needed but seems to mess up sbuild
 # libexpat1-dev:native,
diff --git a/rpm/SPECS/openmodelica.spec.tpl b/rpm/SPECS/openmodelica.spec.tpl
index 8ee4c4b..a586ee3 100644
--- a/rpm/SPECS/openmodelica.spec.tpl
+++ b/rpm/SPECS/openmodelica.spec.tpl
@@ -61,6 +61,13 @@ BuildRequires: xz
 BuildRequires: gcc
 BuildRequires: gcc-c++
 BuildRequires: gcc-gfortran
+# EL 8/9's minizip-devel is minizip-ng, a different API; EPEL has zlib's
+# classic minizip. EL 10 and Fedora only have minizip-ng's compat layer.
+%if 0%{?rhel} == 8 || 0%{?rhel} == 9
+BuildRequires: minizip1.2-devel
+%else
+BuildRequires: minizip-ng-compat-devel
+%endif
 # EL8 is the only target left without qt6, in EPEL or anywhere else, and the
 # GUI clients no longer build against qt5: ship el8 without them.
 %if 0%{?rhel} == 8