diff --git a/util/z60_flashprog.rules b/util/z60_flashprog.rules
index 4651e1e..3efad57 100644
--- a/util/z60_flashprog.rules
+++ b/util/z60_flashprog.rules
@@ -93,4 +93,7 @@
 # Winchiphead (WCH) CH341a based programmer
 ATTRS{idVendor}=="1a86", ATTRS{idProduct}=="5512", MODE="664", GROUP="plugdev"
 
+# Winchiphead (WCH) CH347 based programmer
+ATTRS{idVendor}=="1a86", ATTRS{idProduct}=="55db", MODE="664", GROUP="plugdev"
+
 LABEL="flashprog_rules_end"