diff --git a/printer_data/config/macros/conditional_home.cfg b/printer_data/config/macros/conditional_home.cfg
index e69de29..0e09aeb 100644
--- a/printer_data/config/macros/conditional_home.cfg
+++ b/printer_data/config/macros/conditional_home.cfg
@@ -0,0 +1,6 @@
+# Homes if not homed, skips homing if already homed.
+[gcode_macro COND_G28]
+gcode:
+    {% if "xyz" not in printer.toolhead.homed_axes %}
+        G28
+    {% endif %}