--- a/toolkit/components/terminator/nsTerminator.cpp
+++ b/toolkit/components/terminator/nsTerminator.cpp
@@ -514,16 +514,20 @@ nsTerminator::UpdateTelemetry()
     }
     if (fields++ > 0) {
       telemetryData->Append(", ");
     }
     telemetryData->AppendLiteral("\"");
     telemetryData->Append(sShutdownSteps[i].mTopic);
     telemetryData->AppendLiteral("\": ");
     telemetryData->AppendInt(sShutdownSteps[i].mTicks);
+    telemetryData->AppendLiteral(R"(")");
+    telemetryData->Append(sShutdownStep.mTopic);
+    telemetryData->AppendLiteral(R"(": )");
+    telemetryData->AppendInt(sShutdownStep.mTicks);
   }
   telemetryData->AppendLiteral("}");
 
   if (fields == 0) {
     // Nothing to write
       return;
   }