diff --git a/cmd/treatment/pi3.go b/cmd/treatment/pi.go
similarity index 89%
rename from cmd/treatment/pi3.go
rename to cmd/treatment/pi.go
index bbad0764..fe34c3c9 100644
--- a/cmd/treatment/pi3.go
+++ b/cmd/treatment/pi.go
@@ -1,9 +1,10 @@
-// +build pi3
+//go:build pi
+// +build pi
 
 /*
 DESCRIPTION
-  pi3.go defines an initialisation function for use when running on the
-  Raspberry Pi 3.
+  pi.go defines an initialisation function for use when running on
+  a Raspberry Pi.
 
 AUTHORS
   Ella Pietraroia <ella@ausocean.org>