diff --git a/bin/platformio-custom.py b/bin/platformio-custom.py
index d56cc09f..ec9dd454 100644
--- a/bin/platformio-custom.py
+++ b/bin/platformio-custom.py
@@ -8,7 +8,7 @@ config.read(prefsLoc)
 version = dict(config.items('VERSION'))
 verStr = "{}.{}.{}".format(version["major"], version["minor"], version["build"])
 
-print(f"Using meshtastic platform-custom.py, firmare version {verStr}")
+print("Using meshtastic platform-custom.py, firmare version " + verStr)
 
 # General options that are passed to the C and C++ compilers
 projenv.Append(CCFLAGS=[