diff --git a/packages/tools/u-boot/package.mk b/packages/tools/u-boot/package.mk
index 5e521fa059..295fd80936 100644
--- a/packages/tools/u-boot/package.mk
+++ b/packages/tools/u-boot/package.mk
@@ -35,7 +35,10 @@ esac
 
 post_patch() {
   if [ -n "$UBOOT_SYSTEM" ] && find_file_path bootloader/config; then
-    cat $FOUND_PATH >> "$PKG_BUILD/configs/$($ROOT/$SCRIPTS/uboot_helper $PROJECT $DEVICE $UBOOT_SYSTEM config)"
+    PKG_CONFIG_FILE="$PKG_BUILD/configs/$($ROOT/$SCRIPTS/uboot_helper $PROJECT $DEVICE $UBOOT_SYSTEM config)"
+    if [ -f "$PKG_CONFIG_FILE" ]; then
+      cat $FOUND_PATH >> "$PKG_CONFIG_FILE"
+    fi
   fi
 }