diff --git a/Hardware/Proteus/ProteusAdapter72.md b/Hardware/Proteus/ProteusAdapter72.md
index d6f0d3e4..9f58888f 100644
--- a/Hardware/Proteus/ProteusAdapter72.md
+++ b/Hardware/Proteus/ProteusAdapter72.md
@@ -1,3 +1,4 @@
 # This is a version of the 72 pin adaptor board for the Proteus 
 # It shares 90% of its features with the MRE version so the information [here](MREAdapter72) is still valid with a few additional notes as shown below
 
+https://rusefi.com/forum/viewtopic.php?f=4&t=1701
\ No newline at end of file