diff --git a/procenv.spec b/procenv.spec
index 1ff924b..b033180 100644
--- a/procenv.spec
+++ b/procenv.spec
@@ -11,7 +11,7 @@ License:        GPLv3+
 URL:            https://github.com/jamesodhunt/procenv
 Source0:        https://github.com/jamesodhunt/procenv/archive/%{version}.tar.gz#/%{name}-%{version}.tar.gz
 
-BuildRequires:  expat, libcap-devel, libselinux-devel, check-devel
+BuildRequires:  expat, libcap-devel, libselinux-devel, check-devel, gcc
 # Only used for testing; not in EPEL.
 %if 0%{?fedora}
 BuildRequires:  perl-JSON-PP