diff --git a/src/whereami.c b/src/whereami.c
index 392d1fa5..ad6a7f95 100644
--- a/src/whereami.c
+++ b/src/whereami.c
@@ -2,6 +2,7 @@
 //   without any warranty.
 //   by Gregory Pakosz (@gpakosz)
 // https://github.com/gpakosz/whereami
+// Modified for AVRDUDE in commits 934027b, 3f91c2e, a4f6cb8, 566dfe5 (https://github.com/avrdudes/avrdude)
 
 // In case you want to #include "whereami.c" in a larger compilation unit
 
diff --git a/src/whereami.h b/src/whereami.h
index bfd3169a..ef4d3854 100644
--- a/src/whereami.h
+++ b/src/whereami.h
@@ -2,6 +2,7 @@
 //   without any warranty.
 //   by Gregory Pakosz (@gpakosz)
 // https://github.com/gpakosz/whereami
+// Modified for AVRDUDE in commits dcfb6a8, 2cd6209 (https://github.com/avrdudes/avrdude)
 
 #ifndef WHEREAMI_H
 #define WHEREAMI_H