1 files changed, 1 insertions, 1 deletions

diff --git a/meta/classes/kernel.bbclass b/meta/classes/kernel.bbclass
index 9bc0e41251..dc0152f74a 100644
--- a/meta/classes/kernel.bbclass
+++ b/meta/classes/kernel.bbclass
@@ -279,7 +279,7 @@ get_cc_option () {
 
 kernel_do_compile() {
         unset CFLAGS CPPFLAGS CXXFLAGS LDFLAGS MACHINE
-        if [ "$BUILD_REPRODUCIBLE_BINARIES" = "1" ]; then
+        if [ "${BUILD_REPRODUCIBLE_BINARIES}" = "1" ]; then
                 # kernel sources do not use do_unpack, so SOURCE_DATE_EPOCH may not
                 # be set....
                 if [ "$SOURCE_DATE_EPOCH" = "0" ]; then