diff --git a/dom/system/gonk/ril_worker.js b/dom/system/gonk/ril_worker.js
index ff48bbb3aa7..02c137bbff4 100644
--- a/dom/system/gonk/ril_worker.js
+++ b/dom/system/gonk/ril_worker.js
@@ -67,13 +67,13 @@ const MMI_MAX_LENGTH_SHORT_CODE = 2;
 
 const MMI_END_OF_USSD = "#";
 
-let RILQUIRKS_CALLSTATE_EXTRA_UINT32 = libcutils.property_get("ro.moz.ril.callstate_extra_int", "false") === "true";
+let RILQUIRKS_CALLSTATE_EXTRA_UINT32 = libcutils.property_get("ro.moz.ril.callstate_extra_int");
 // This may change at runtime since in RIL v6 and later, we get the version
 // number via the UNSOLICITED_RIL_CONNECTED parcel.
-let RILQUIRKS_V5_LEGACY = libcutils.property_get("ro.moz.ril.v5_legacy", "true") === "true";
-let RILQUIRKS_REQUEST_USE_DIAL_EMERGENCY_CALL = libcutils.property_get("ro.moz.ril.dial_emergency_call", "false") === "true";
-let RILQUIRKS_MODEM_DEFAULTS_TO_EMERGENCY_MODE = libcutils.property_get("ro.moz.ril.emergency_by_default", "false") === "true";
-let RILQUIRKS_SIM_APP_STATE_EXTRA_FIELDS = libcutils.property_get("ro.moz.ril.simstate_extra_field", "false") === "true";
+let RILQUIRKS_V5_LEGACY = libcutils.property_get("ro.moz.ril.v5_legacy");
+let RILQUIRKS_REQUEST_USE_DIAL_EMERGENCY_CALL = libcutils.property_get("ro.moz.ril.dial_emergency_call");
+let RILQUIRKS_MODEM_DEFAULTS_TO_EMERGENCY_MODE = libcutils.property_get("ro.moz.ril.emergency_by_default");
+let RILQUIRKS_SIM_APP_STATE_EXTRA_FIELDS = libcutils.property_get("ro.moz.ril.simstate_extra_field");
 
 // Marker object.
 let PENDING_NETWORK_TYPE = {};