diff --git a/environment-modules.spec b/environment-modules.spec
index 63ada40..f46a29f 100644
--- a/environment-modules.spec
+++ b/environment-modules.spec
@@ -1,9 +1,11 @@
 %global macrosdir %(d=%{_rpmconfigdir}/macros.d; [ -d $d ] || d=%{_sysconfdir}/rpm; echo $d)
 %global vimdatadir %{_datadir}/vim/vimfiles
 
+%bcond_with compat
+
 Name:           environment-modules
 Version:        4.7.0
-Release:        2%{?dist}
+Release:        3%{?dist}
 Summary:        Provides dynamic modification of a user's environment
 
 License:        GPLv2+
@@ -20,9 +22,11 @@ BuildRequires:  procps-ng
 # specific requirements to build compat version and extension library
 BuildRequires:  gcc
 BuildRequires:  tcl-devel
+%if %{with compat}
 # specific requirements to build compat version
 BuildRequires:  libX11-devel
 BuildRequires:  tclx-devel
+%endif
 Requires:       tcl
 Requires:       sed
 Requires:       less
@@ -58,6 +62,7 @@ suite of different applications.
 NOTE: You will need to get a new shell after installing this package to
 have access to the module alias.
 
+%if %{with compat}
 %package compat
 Summary:        Environment Modules compatibility version
 Requires:       environment-modules = %{version}-%{release}
@@ -68,7 +73,7 @@ The Environment Modules package provides for the dynamic modification of
 a user's environment via modulefiles.
 
 This package provides Environment Modules compatibility version (3.2).
-
+%endif
 
 %prep
 %setup -q -n modules-%{version}
@@ -83,7 +88,9 @@ This package provides Environment Modules compatibility version (3.2).
            --mandir=%{_mandir} \
            --vimdatadir=%{vimdatadir} \
            --enable-multilib-support \
+%if %{with compat}
            --enable-compat-version \
+%endif
            --disable-doc-install \
            --enable-dotmodulespath \
            --disable-set-shell-startup \
@@ -148,22 +155,25 @@ fi
   --slave %{_sysconfdir}/profile.d/modules.csh modules.csh %{_datadir}/Modules/init/profile.csh \
   --slave %{_bindir}/modulecmd modulecmd %{_datadir}/Modules/libexec/modulecmd.tcl
 
+%if %{with compat}
 %post compat
 %{_sbindir}/update-alternatives \
   --install %{_sysconfdir}/profile.d/modules.sh modules.sh %{_datadir}/Modules/init/profile-compat.sh 10 \
   --slave %{_sysconfdir}/profile.d/modules.csh modules.csh %{_datadir}/Modules/init/profile-compat.csh \
   --slave %{_bindir}/modulecmd modulecmd %{_datadir}/Modules/libexec/modulecmd-compat
+%endif
 
 %postun
 if [ $1 -eq 0 ] ; then
   %{_sbindir}/update-alternatives --remove modules.sh %{_datadir}/Modules/init/profile.sh
 fi
 
+%if %{with compat}
 %postun compat
 if [ $1 -eq 0 ] ; then
   %{_sbindir}/update-alternatives --remove modules.sh %{_datadir}/Modules/init/profile-compat.sh
 fi
-
+%endif
 
 %files
 %license COPYING.GPLv2
@@ -194,14 +204,18 @@ fi
 %{vimdatadir}/ftplugin/modulefile.vim
 %{vimdatadir}/syntax/modulefile.vim
 
+%if %{with compat}
 %files compat
 %doc ChangeLog-compat NEWS-compat
 %{_datadir}/Modules/libexec/modulecmd-compat
 %{_mandir}/man1/module-compat.1.gz
 %{_mandir}/man4/modulefile-compat.4.gz
-
+%endif
 
 %changelog
+* Wed May 19 2021 Joe Orton <jorton@redhat.com> - 4.7.0-3
+- add bcond for compat subpackage (#1940568)
+
 * Thu Apr 15 2021 Mohan Boddu <mboddu@redhat.com> - 4.7.0-2
 - Rebuilt for RHEL 9 BETA on Apr 15th 2021. Related: rhbz#1947937