diff --git a/README.md b/README.md
index ec6f239..adeffbc 100644
--- a/README.md
+++ b/README.md
@@ -40,7 +40,7 @@ What to hack
     * ? old beamer [patchhoernchen]
     * some controller (raspi, nuc-alike?)
         * ? i can bring a raspi-zero [phelix]
-* ? soldering iron
+* ? soldering iron [patchhoernchen]
     * additional soldering tooling
         * 3rd hand, wires, paste, etc.