diff --git a/telephony/java/android/telephony/CarrierConfigManager.java b/telephony/java/android/telephony/CarrierConfigManager.java
index 62e532e81b890..df8affef8f464 100644
--- a/telephony/java/android/telephony/CarrierConfigManager.java
+++ b/telephony/java/android/telephony/CarrierConfigManager.java
@@ -411,7 +411,7 @@ public class CarrierConfigManager {
      * @hide
      */
     public static final String KEY_ALLOW_NON_EMERGENCY_CALLS_IN_ECM_BOOL =
-            "allowNonEmergencyCallsInEcm";
+            "allow_non_emergency_calls_in_ecm_bool";
 
     /** The default value for every variable. */
     private final static PersistableBundle sDefaults;