diff --git a/paludis/env.conf.d/gcc.conf b/paludis/env.conf.d/gcc.conf
index 4dd2fbd..e115412 100644
--- a/paludis/env.conf.d/gcc.conf
+++ b/paludis/env.conf.d/gcc.conf
@@ -1,5 +1,7 @@
 CC=x86_64-pc-linux-gnu-gcc
 CXX=x86_64-pc-linux-gnu-g++
+BUILD_CC=${CC}
+BUILD_CXX=${CXX}
 
 remove-options CFLAGS -Qunused-arguments -fcolor-diagnostics
 remove-options CXXFLAGS -Qunused-arguments -fcolor-diagnostics