diff --git a/core/grub/build b/core/grub/build
index 46b057c1..a3551b86 100755
--- a/core/grub/build
+++ b/core/grub/build
@@ -3,7 +3,6 @@
 # Strip '-march' from 'CFLAGS' as per advice from upstream.
 # Fixes build fails on specific hardware.
 CFLAGS=$(printf %s "$CFLAGS" | sed 's/-march=[^ ]*//g')
-export CFLAGS
 
 # Grub is built in a function so the script argument
 # needs to be stored.