diff --git a/tpm-tools.spec b/tpm-tools.spec
index da5c69e..0d8dd86 100644
--- a/tpm-tools.spec
+++ b/tpm-tools.spec
@@ -5,6 +5,7 @@ Release:          4%{?dist}
 License:          CPL
 URL:              http://trousers.sourceforge.net
 Source0:          http://downloads.sourceforge.net/trousers/%{name}-%{version}.tar.gz
+BuildRequires:  gcc
 BuildRequires:    trousers-devel openssl-devel opencryptoki-devel
 Patch0001:        0001-Fix-build-with-OpenSSL-1.1-due-to-EVP_PKEY-being-an-.patch
 Patch0002:        0002-Fix-build-with-OpenSSL-1.1-due-to-RSA-being-an-opaqu.patch