diff --git a/test/configs/atmega644p.config b/test/configs/atmega644p.config
new file mode 100644
index 00000000..1dd6fa0f
--- /dev/null
+++ b/test/configs/atmega644p.config
@@ -0,0 +1,4 @@
+# Base config file for atmega644p
+CONFIG_MACH_AVR=y
+CONFIG_MACH_atmega644p=y
+CONFIG_CLOCK_FREQ=16000000
diff --git a/test/klippy/printers.test b/test/klippy/printers.test
index 1575c8f7..20d6e6f1 100644
--- a/test/klippy/printers.test
+++ b/test/klippy/printers.test
@@ -60,6 +60,10 @@ CONFIG ../../config/printer-tronxy-x5s-2018.cfg
 CONFIG ../../config/printer-tronxy-x8-2018.cfg
 CONFIG ../../config/printer-wanhao-duplicator-i3-v2.1-2017.cfg
 
+# Printers using the atmega644
+DICTIONARY atmega644p.dict
+CONFIG ../../config/generic-simulavr.cfg
+
 # Printers using the at90usb1286
 DICTIONARY at90usb1286.dict
 CONFIG ../../config/generic-printrboard.cfg