diff --git a/cddlib.spec b/cddlib.spec
index 976a525..b3b39d3 100644
--- a/cddlib.spec
+++ b/cddlib.spec
@@ -14,6 +14,7 @@ Patch0:         %{name}-sagemath.patch
 # call functions in both.
 Patch1:         %{name}-polymake.patch
 
+BuildRequires:  gcc
 BuildRequires:  gmp-devel
 BuildRequires:  libtool
 BuildRequires:  tex(latex)