diff --git a/device.mk b/device.mk
index 9b150c86..2859629b 100755
--- a/device.mk
+++ b/device.mk
@@ -29,6 +29,10 @@ PRODUCT_PROPERTY_OVERRIDES += \
 PRODUCT_SYSTEM_DEFAULT_PROPERTIES += \
     ro.adb.secure=1
 
+# Telephony IWLAN operation mode
+PRODUCT_SYSTEM_DEFAULT_PROPERTIES += \
+    ro.telephony.iwlan_operation_mode=0
+
 PRODUCT_COPY_FILES += \
     device/google/wahoo/default-permissions.xml:$(TARGET_COPY_OUT_VENDOR)/etc/default-permissions/default-permissions.xml \
     frameworks/native/data/etc/handheld_core_hardware.xml:$(TARGET_COPY_OUT_VENDOR)/etc/permissions/handheld_core_hardware.xml \