diff --git a/lapack.spec b/lapack.spec
index 8917a0e..06f2e6a 100644
--- a/lapack.spec
+++ b/lapack.spec
@@ -22,6 +22,8 @@ Source4: http://www.netlib.org/lapack/lapackqref.ps
 Source5: http://www.netlib.org/blas/blasqr.ps
 BuildRequires: gcc-gfortran, gawk
 BuildRequires: make, cmake
+# There isn't any c++ code here, but cmake checks for a working c++ compiler?
+BuildRequires: gcc-c++
 Requires: blas%{?_isa} = %{version}-%{release}
 
 %global _description_lapack %{expand: