diff --git a/build-package.sh b/build-package.sh
index 2b4561c8f..4a2918db3 100755
--- a/build-package.sh
+++ b/build-package.sh
@@ -680,7 +680,7 @@ termux_setup_golang () {
 
 source $TERMUX_PKG_BUILDER_SCRIPT
 
-if [ "$TERMUX_PKG_BLACKLISTED_ARCHES" != "${TERMUX_PKG_BLACKLISTED_ARCHES/$TERMUX_ARCH/}" ]; then
+if [ -n "${TERMUX_PKG_BLACKLISTED_ARCHES:=""}" -a "$TERMUX_PKG_BLACKLISTED_ARCHES" != "${TERMUX_PKG_BLACKLISTED_ARCHES/$TERMUX_ARCH/}" ]; then
 	echo "Skipping building $TERMUX_PKG_NAME for arch $TERMUX_ARCH"
 	exit 0
 fi