diff --git a/build.sh b/build.sh
index d1a2596..16f5e97 100755
--- a/build.sh
+++ b/build.sh
@@ -242,7 +242,8 @@ fi
 
 cd $(dirname $0)
 # Create image output location
-mkdir -p $TARGET_DIR/$TARGET_SUBDIR
+mkdir -pv $TARGET_DIR/$TARGET_SUBDIR
+[ $? -eq 0 ] || failure
 
 # Don't quit on any errors now
 set +e