diff --git a/telephony/java/com/android/internal/telephony/RIL.java b/telephony/java/com/android/internal/telephony/RIL.java
index 2833d562a8ee9..d79a89e84a685 100644
--- a/telephony/java/com/android/internal/telephony/RIL.java
+++ b/telephony/java/com/android/internal/telephony/RIL.java
@@ -3406,6 +3406,8 @@ public final class RIL extends BaseCommands implements CommandsInterface {
         RILRequest rr = RILRequest.obtain(
                 RILConstants.RIL_REQUEST_QUERY_TTY_MODE, response);
 
+        if (RILJ_LOGD) riljLog(rr.serialString() + "> " + requestToString(rr.mRequest));
+
         send(rr);
     }
 
@@ -3419,6 +3421,9 @@ public final class RIL extends BaseCommands implements CommandsInterface {
         rr.mp.writeInt(1);
         rr.mp.writeInt(ttyMode);
 
+        if (RILJ_LOGD) riljLog(rr.serialString() + "> " + requestToString(rr.mRequest)
+                + " : " + ttyMode);
+
         send(rr);
     }