diff --git a/device.mk b/device.mk
index 310596c..f487f12 100644
--- a/device.mk
+++ b/device.mk
@@ -66,3 +66,11 @@ PRODUCT_COPY_FILES += \
 AB_OTA_PARTITIONS += \
     vbmeta
 
+# Enable modem logging
+ifneq (,$(filter userdebug eng, $(TARGET_BUILD_VARIANT)))
+PRODUCT_PROPERTY_OVERRIDES += \
+    persist.sys.modem.diag.mdlog=true \
+    ro.radio.log_loc="/data/vendor/modem_dump" \
+    ro.radio.log_prefix="modem_log_"
+endif
+
diff --git a/init.logging.rc b/init.logging.rc
index e69de29..2e76037 100644
--- a/init.logging.rc
+++ b/init.logging.rc
@@ -0,0 +1,2 @@
+on post-fs-data
+    mkdir /data/vendor/modem_dump 0777 system system