diff --git a/config/telephony.mk b/config/telephony.mk
index be414ed5..0c6ebba8 100644
--- a/config/telephony.mk
+++ b/config/telephony.mk
@@ -24,3 +24,7 @@ PRODUCT_PRODUCT_PROPERTIES += \
 # (for devices that check this)
 PRODUCT_SYSTEM_DEFAULT_PROPERTIES += \
     net.tethering.noprovisioning=true
+
+# Disable mobile data by default
+PRODUCT_PRODUCT_PROPERTIES += \
+    ro.com.android.mobiledata=false