diff --git a/third_party/toolchains/preconfig/generate/BUILD b/third_party/toolchains/preconfig/generate/BUILD
index 887a7473444..03c382e14cb 100644
--- a/third_party/toolchains/preconfig/generate/BUILD
+++ b/third_party/toolchains/preconfig/generate/BUILD
@@ -12,6 +12,7 @@ tensorflow_rbe_config(
 tensorflow_rbe_config(
     name = "centos6",
     compiler = "gcc",
+    compiler_prefix = "/opt/rh/devtoolset-7/root/usr/bin",
     os = "centos6",
     python_version = "3",
 )