diff --git a/logger/Logger.cxx b/logger/Logger.cxx
index 39b72ac..b3b3003 100644
--- a/logger/Logger.cxx
+++ b/logger/Logger.cxx
@@ -66,6 +66,7 @@ const unordered_map<string, Severity> Logger::fSeverityMap =
 {
     { "nolog",     Severity::nolog     },
     { "NOLOG",     Severity::nolog     },
+    { "fatal",     Severity::fatal     },
     { "error",     Severity::error     },
     { "ERROR",     Severity::error     },
     { "alarm",     Severity::alarm     },