diff --git a/build_tools/build_detect_platform b/build_tools/build_detect_platform
index 94aafd62ef..2ff64afe23 100755
--- a/build_tools/build_detect_platform
+++ b/build_tools/build_detect_platform
@@ -49,7 +49,7 @@ if [ -d /mnt/gvfs/third-party -a -z "$CXX" ]; then
     if [ -z "$USE_CLANG" ]; then
         CENTOS_VERSION=`rpm -q --qf "%{VERSION}" \
           $(rpm -q --whatprovides redhat-release)`
-        if [ "$CENTOS_VERSION" = "6" ]; then
+        if [ "$CENTOS_VERSION" -ge "6" ]; then
           source $PWD/build_tools/fbcode.gcc481.sh
         else
           source $PWD/build_tools/fbcode.gcc471.sh