diff --git a/library.properties b/library.properties
index 4f1429a..8b175f7 100644
--- a/library.properties
+++ b/library.properties
@@ -8,3 +8,4 @@ category=Sensors
 url=https://github.com/NorthernWidget/ALog
 architectures=*
 includes=SdFat.h,Wire.h,DS3231.h,math.h,avr/sleep.h,avr/wdt.h,stdlib.h,SFE_BMP180.h
+depends=SdFat,DS3231